Environmental Science: Acid Rain, Pollution Prevention, & Conservation Practices

What a joy teaching environmental science has been. Thus far, we’ve learned about the changes in environmental policy and how the Boy Scouts of America have contributed to environmental conservation practices. We have also learned about pollination, environmental changes, and threatened and endangered species.

Today, our focus shifts to acid rain, pollution prevention, and conservation practices we can engage in ourselves.

Each Sunday through the month of September, I will post a description of the activities I coordinated and the resources I used to teach the environmental science merit badge. Today’s post is the third in the series.

Pollution Prevention & Conservation Practices @EvaVarga.netWater Pollution – Oil Spill Activity

The Exxon Valdez oil spill occurred in Prince William Sound, Alaska, March 24, 1989, when an oil tanker bound for Long Beach, California, struck Prince William Sound’s Bligh Reef in the wee hours of ht morning and spilled over 10 million gallons of crude oil into the sea.

As the Scouts learned in the Environmental Science Timeline game we played the day prior, this disaster resulted in the International Maritime Organization introducing comprehensive marine pollution prevention rules through various conventions. We discussed this tragedy as I shared several photos and strategies that were used to clean up the oil.

We then engaged in an Oil Spill Experiment of our own. One Scout shared with us a video of an incredible new material – a foam material coated with oil-attracted silane molecules – that absorbs oil but not water. It was fascinating and extended our discussion.

Pollution Prevention & Conservation Practices @EvaVargaAir Pollution – Acid Rain Activity

Acid rain is a broad term that includes any form of precipitation (rain, snow, fog, hail, or even dust) with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. With the aid of the visual above, we discussed the pathway by which precipitation becomes acidic.

While we didn’t undertake the lab outlined below due to time constraints, I encouraged each of the Scouts to set up the lab portion of the activity is to demonstrate the effects of acid rain on our environment.

Materials

  • Six Petri dishes (3 for the control, 3 for the acidic solution you choose to test)
  • Pipette
  • Large bell jar or similar item
  • Sulfuric acid or an alternative acidic solution (lactic acid – milk or a citric acid – lemon juice)
  • Two 2-liter soft drink containers
  • Four small pieces of marble or limestone
  • Small growing plant
  • Four small pieces of raw meat (fish or chicken)
  • Two green leaves
  • Small amount of soil

Procedure

Several days in advance, prepare Petri dishes with soil & stone, leaf, and raw meat (two dishes each). One set is to be the control to which distilled water is added. Add a solution of 50% sulfuric acid to the other set. Keep these in a location that is secure so they don’t accidentally get spilled.

Display the Petri dishes and show the class how the acid has affected soil/stone, plant, and animal materials compared to the items in plain water.  Together discuss what effects they think acid rain would have on the various aspects of their local ecosystem.

Set up the following long-term experiment:

  1. Place the potted plant under the bell jar and add a Petri dish or other small vessel of 10% sulfuric acid. Maintain plant normally including acid solution.
  2. Put about one inch of 10-15% sulfuric acid solution into one of the soft drink containers. Suspend a marble or limestone chip above the solution. Cap tightly.
  3. Duplicate (a) and (b) with water only as controls.
  4. Put a piece of raw meat in each of two Petri dishes; immerse one in water and cover, immerse the other in weak acid solution and cover. Note: these pieces of meat will
    deteriorate but the effect of the acid solution will become evident over a period of time.
reduce pollutionExcerpted from a slide show created by the Utah National Parks Council of the BSA

Pollution Prevention & Conservation

Lastly, we brainstormed a number of ways we could help to reduce pollution and conserve our natural resources. We filled the whiteboard with their ideas and discussed several in more depth.

Each Scout was then directed to choose two to put them into practice for the next couple of weeks. I asked that they keep track of their progress and to report back to me what they learned from the experience.


Join us next week for the final post in the series, whereupon I focus on an outdoor biodiversity study and an environmental impact statement.

Perfect Travel Gifts & Tips for Young Adventurists & Travelers

Traveling isn’t easy. There are frequent hiccups and unexpected delays that can lead to headaches and frustration. Over the years, we have learned a lot. We have become more savvy about what we need pack to assure we are comfortable and more flexible in how we pack to avoid potential catastrophes.

Today, I share a list of travel gifts for young adventurists and travelers – things you will find make travel with kids easier and more enjoyable.

Perfect Travel Gifts & Tips for Young Adventurists & Travelers

This post contains affiliate links which means I may receive a commission when products are purchased. Please see my disclosure policy for details.

Travel Gifts for Young Adventurists

We absolutely love to travel. Until recently, my hubby’s high pressure job necessitated that he decompress every six months. Even so, it would take him nearly a week before he could relax enough to enjoy himself while on vacation. While his work doesn’t permit us to world school on a full-time basis, we have become accustomed to traveling regularly for 2-3 week holidays at least once a year.

Build Excitement Prior Departure

Over the years, we have surprised the kids with a trip to Disneyland, slowly built anticipation for Florida with clue envelopes, and done all the planning ourselves. What we have found works best for us, however, is that everyone is involved in the planning.

When the kids were younger, we subscribed to a monthly travel adventure from Little Passports. It was a fun way to spark interest in travel and engage them in a great learning activity. They loved following along with Sam and Sofia, marking their new location on the world map and “stamp their passport book”.

Now that they are older, they take a more vested interest in our travel destinations. We generally discuss our next excursion concurrently while on vacation. This helps to make the long flight hours and delays more endurable.

Once we’ve settled on a destination, we are each expected to research the attractions and activities we would most like to take part. We make a list and share our ideas at a family meeting.

Not only does this help to build their excitement, they learn a lot about geography and budgeting as they help to plan our excursions and are more invested upon our arrival.

Perfect Travel Gifts for Young Adventurists & TravelersTravel Gifts & Tips for Packing

When we first traveled abroad to Scandinavia, our luggage was delayed and we arrived in Copenhagen, Denmark with just one suitcase. The kids had their clothing but hubby and I had only our carry-on bags. Fortunately, our bags arrived the next day but we certainly learned a lot in regards to packing on that first trip.

We now split our things between our four suitcases – a few days of clothing in each suitcase. We use Eagle Creek packing cubes to keep everything nicely organized and to take the stress out of packing for these extended holidays

Hubby and I have two large garment folders each. Each one holds several days of clothes. The kids use the medium cubes and the small cubes are perfect catch alls for outlet adapters, chargers, batteries, our first aid kit, etc.

What I love best about the packing cubes is that they come in a variety of colors. We can easily identify whose cube is whose. Eagle Creek now has a lighter weight fabric and a wider range of color options in their new line of Specter Cubes.

One quick and inexpensive way to distinguish your luggage from another traveler is to use tassels or pom poms on the luggage handle. Alternatively, luggage belts work well to secure the contents in case a zipper breaks in transport.  

I love the green color of our Eagle Creek luggage (pictured above), making it more visible on the luggage carousel in baggage claim. Though we have not yet invested in new suitcases for the kids, when we do, I know it will be Eagle Creek. They stand behind their lifetime guarantee. When the zipper on one of our green suitcases broke, we simple dropped it off at an Eagle Creek retailer, and they repaired it and shipped it back to us FREE of charge! How’s that for customer service!?

Another product we love are the colorful daypacks and gear by Cotopaxi. Lightweight and versatile, the daypacks are perfect for carry-on luggage as they fit under the seat nicely and have ample space for a change of clothing, your shaving kit or vanity bag, a jacket, and a few incidentals to keep you busy en route.

Use this link for a $20 Cotopaxi discount

Cotopaxi is making a difference in the global community, creating innovative outdoor products that fund sustainable poverty alleviation, move people to do good, and inspire adventure. Their products are guaranteed to last 61 years. If there’s a problem with your product, they’ll gladly exchange it, get you a replacement, or repair it. I love a company that stands behind their products!

Lastly, we have a set of TSA-approved luggage locks to secure our baggage – comforting when we have late departures and need to store our luggage with the hotel prior to our departure. The TSA logo on these special locks alerts inspectors that they can unlock the luggage without cutting the lock or damaging the bag.

We have had our locks for several years. The resettable 3-dial combination is easy to set and alleviates the stress of having to carry another set of keys.

Travel Gifts & Tips for the Departure

To keep the kids busy en route, we generally bring along the iPad and their Mandarin schoolwork. Often they are expected to journal about their trip in Chinese. They also bring along a puzzle book and a paperback book or two that they will discard along the way when they finish with it.Fun Travel Gifts for Young Travelers

My son is now twelve years old. Unlike his sister, he is not an avid reader so it is rare to catch him reading quietly. He has always been fascinated with airplanes however, and will generally content himself with watching the planes take-off and land while at the airport. Once we are underway, he makes quick friends with the stewards for soda refills as we watches the inflight movie.

One thing we’ve found that works well for him is to carry a Lego mini-fig or two in his carry-on. His grandmother also gifted him with a small digital camera a year ago and he uses it to digitally journal his trip from the perspective of his mini-fig. It is so fun to watch him as he carefully poses his pocket size toy and carefully words captions and anecdotes in his journal.The Puzzling Impact of Erno Rubik @EvaVarga.netMy son has recently developed an interest in speed cubing. He thereby carries a puzzle with him everywhere. Even if your child is not a speed cuber, learning the algorithms to solve even the original Rubik’s Cube 3x3x3 takes time. It’s thereby the perfect activity for teens to occupy themselves during long flights and car drives.

Tips for Improving Your Experiences Upon Arrival

As I eluded to earlier, teens have a more vested interest in the trip when they have been given the chance to help plan the destination and the excursions you take part in upon arrival. This was never more evident than during our recent trip to the East Coast.

Our advance research and planning paid off. While in New York, we purchased a CityPASS as the majority of the sights we wanted to see were included. We thereby saved money on admission fees and avoided long lines at the ticketing window. It was well worth our time.

My daughter loves to visit art museums while my son enjoys air and space museums. We thereby did our best to alternate visits so everyone was happy. Keep in mind, however, that you don’t always have to do everything together.

National Portrait Gallery: Must See Art Museums Around the World @EvaVarga.netIn Washington DC, the boys spent an afternoon at the International Spy Museum while Geneva and I took our time at the Smithsonian American Art Museum which were conveniently located next to each other. We were able to take our time to explore the exhibits without feeling rushed by those who were less interested. 

Even with an itinerary and well-thought out plans, things do not always go as planned. When things go awry, we have learned it is critical to sit down each evening and reflect on what did go well in addition to that which fell apart. We also discuss what we each could have done to make the day better.

These vacation debriefs, as we have come to call them, are easy to implement and have opened valuable dialogue. We learn more about one another’s expectations and how we can improve our communication skills when we are in stressful situations.

christmas-gift-guides-23894

Looking for more gift ideas? Hop over to the iHomeschool Network linkup for many more Christmas Gift Guides.

Finishing Strong #134

Welcome to Finishing Strong ~ a weekly link-up dedicated to families homeschooling middle & high school kids. Each Wednesday, moms just like you share their best tips, encouragement, advice, and more for teaching older kids at home.

I am delighted that families homeschooling middle and high school age students are coming together and finding inspiration in one another. That’s has been the goal of Finishing Strong since its inception. Thank you!!

Finishing Strong #134

Finishing Strong is hosted by me here at EvaVarga along with my friends – Heather from Blog She Wrote, Megan from Education Possible, and Heidi from Starts at Eight.

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The Secret to Homeschooling Middle School

The most clicked post this week was from Our Unschooling Journey Through Life called The Secret to Homeschooling Middle School. She wants to tell you a little secret about homeschooling middle school…”teaching a 6th grader is not that much different than teaching a 4th or 5th grader.”

middle school

Finishing Strong

We hope you’ll take some time to check out the amazing posts that have been shared with us. We are so thankful to all of our readers and contributors who help make Finishing Strong a key resource for everyone homeschooling through the middle & high school years.

Below are some of the posts I enjoyed from last week. Did I choose one of your favorites?

The Truth About How to “Look Good” on College Applications

from Annie & Everything ~ This article does a great job of simplifying this process by breaking it down to the nitty gritty of what you really need: 1. meet the college requirements, 2. meet your state homeschool laws.

Preparing for College Made Easy: A Guide to the Common Application

from Blog She Wrote ~ This app offers a way to streamline the college application process. You choose the schools, they do they work for you!

What You Really Need to Know to Apply to College

from BJ’s Homeschool ~ I love that this article starts you in high school by helping you set out a plan for high school that will benefit your child when it comes to college admission.

@ @ @

As always, thank you for helping us to make Finishing Strong a key resource for families who are homeschooling through the middle & high school years.

What are you going to share with us this week?

Guidelines:

  1. Link up to 3 posts from your blog. Make sure you use the exact URL to the post, not to your home page. You can add any post related to homeschooling middle and high school students. Posts unrelated to that will be removed.
  2. Please no advertising, individual Pinterest pins, Facebook, Twitter, or other link-up links!
  3. Grab our button to add to your post after you link it up. Each week we will be choosing our favorite posts to highlight on all 4 sites. If you were featured, we would love for you to use the “I was featured” button.
  4. The linky will go live on each co-host’s blog each Wednesday at 6am EST, and will be live until Tuesday at 11:55 pm.

Please Share!

Add our button to your post.

Homeschooling the Middle & High School Years

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Environmental Science: How Species Respond to Environmental Changes

Last week I shared with you three activities I shared with the Scouts. A timeline activity to introduce them to the historical events that have helped shape environmental policy in the United States, key terms bingo, and a fortune teller illustrating the metamorphosis of honey bees.

Today, my focus is on how organisms respond to changes in the environment and endangered species. These activities were selected to meet the requirements for #3a and 3e of the environmental science merit badge.

 Each Sunday through the month of September, I will post a description of the activities I coordinated and the resources I used to teach the environmental science merit badge. Today’s post is the second in the series.

Environmental Changes & How Species Respond @EvaVarga.netResponding to Environmental Changes

Ecologists do not only study organisms; they also study how organisms interact with other organisms and how they interact with the nonliving parts of their environments, like chemicals, nutrients, habitats, and so on.

The range and type of interactions that organisms can have with each other and with their environments are large and complex. Some ecologists focus on how individual organisms respond to their environment. Other ecologists are more interested in how organisms of the same species interact with each other in populations.

Still others spend their days examining how whole populations interact with other populations in a community. At the highest level, some ecologists focus on the big picture, studying the interactions between all of the living and nonliving elements in a given area, or ecosystem.

Natural Environmental Changes

Our environment is constantly changing. Natural disasters can cause drastic environmental changes and if severe enough, even mass extinctions. By examining previous natural disasters – earthquakes, tsunamis, hurricanes, and volcanoes to name just a few – and their environmental impacts we can learn what to expect in the future.

We opened our lesson with a discussion on the processes of erosion. The Scouts were asked to submit to me photographs of areas where they had observed erosion and to describe what elements contributed to the process. Here are a few of the photos they submitted:

Why Should We Care?

So, why should we care about ecology? For some communities changes to climate are causing longer droughts, more severe floods, and harsher environments. Let’s put it into perspective with just one case study made famous by John Steinbeck’s novel, Cannery Row.

Every year, more than 92 million tons of ocean life (like fish, aquatic plants, and so on) are “harvested” from around the world for human consumption. Billions of people rely on these harvests to sustain life – either for food directly or for their livelihood. A poor understanding of marine ecology can result in disaster.

One of the most well-known of these disasters occurred off of the coast of California in Monterey Bay in the mid-1950s. At the time, this bay was one of the most productive fisheries in the world, particularly sardines. However, before 1960, harvests had plummeted, and, by 1973, the last sardine cannery in Monterey closed its doors forever.

Unfortunately, the fishing industry had not applied common ecological sense in their decisions. Sardines were removed from the bay faster than they could reproduce, resulting in a population crash and the end of an economy.

How Do Caterpillars Respond to Stimuli?

Rainforest CaterpillarsBefore my children were born, I volunteered on an Earthwatch expedition to study Rainforest Caterpillars. It was one of the most memorable experiences of my life – particularly when I consider the impact it had on my classroom teaching strategies. While the focus of our study was on Parasitism in Caterpillars, what stands out to me about this experience was the real-time observations we were able to make in the field – recording how the caterpillars responded to mechanical stimuli.

Essentially, we would gently pet them with a small paint brush and then pinch them carefully with a pair of tweezers (enough to get a reaction but not to harm).  We would then record their behavior or reaction to the stimuli.

We did this to get a general idea of how the different species would defend themselves and observed a wide variety of behaviors including thrashing about, rearing up and attempting to bite the attacker (that would be us), as well as and most amusing, kicking frass at us.

If you have caterpillars in your local area, give this a try. How do your local species respond to the same stimuli described above?

How Do Aquatic Organisms Respond to Stimuli?

Materials

  • Living specimen of planktonic aquatic life
  • Droppers
  • Vinegar
  • Caffeinated and decaffeinated coffee
  • Sugar
  • Specimen pipettes
  • Compound micropscope
  • Salt crystals
  • Microscope slides and coverslips
  • Cotton fibers

Procedure

  1. Using a specimen pipette, remove a drop from the collected specimen.
  2. Place culture on the microscope slide and cover. Focus microscope to locate organism.
  3. After first observing normal activity, introduce artificial stimuli so the the response can be observed. Record behavior observations on a chart in a lab notebook.
  4. Prepare a new culture specimen if necessary; repeat steps 1-3.
  5. Carefully place a small salt crystal near some of the swimming organisms. Observe and record their response.
  6. Continue to add each stimuli, observing and recording the behavior each time.
  7. Observe movement. Are new structures visible on the organism? Has movement increased or decreased?

Alternatively, you might consider the Goldfish Lab I shared sometime ago.

Environmental Science Endangered SpeciesEnvironmental Changes & Endangered Species

In addition to the activities and discussion described above, Scouts were expected to write a 100 word (minimum) report an an endangered species of their choice. They were then asked to present what they had learned with the group. In this way, we would have a broader perspective and learn how environmental changes have effected a variety of species.


Join me next week as we explore topics related to pollution and acid rain.

Keeping Teens Challenged and Engaged with Video Presentations

Many teens dread giving a speech in front of their peers. They have difficulty capturing – and keeping – the attention of their audience. They struggle to structure and communicate their ideas successfully.

Integrating a variety of technology into your courses – whether it’s history, science, language arts, or a foreign language – will provide teens with a range of  multimedia and design tools. In doing so, teens are more engaged and thereby develop a range of skills related to production and video presentations. Best of all, they learn to communicate more clearly and more compellingly with their audience.

mysimpleshow video presentations

I was compensated for my time writing this review. All opinions expressed are true and completely our own. Please see my disclosure policy for more information.

Tips For Keeping Teens Engaged

Teens get bored easily – especially when instruction is delivered the same way or when asked to give yet another speech to demonstrate what they have learned. Keep teens engaged by designing lessons that include novelty, variety, and fun.

When teens use short and friendly video, they can awake interest for almost any topic. Creating explainer videos with mysimpleshow, for example, is easy and exciting, and it also trains users regarding the application of creative technology resources.

Focus student attention by incorporating demonstrations, role playing, hands-on activities, storytelling, and multimedia presentations to enhance instruction. Requesting students create explainer videos with mysimpleshow is a great means to structure content, provide guidance, and give an overview.

Did you know?

The great Roman orator, Cicero, recommended the use of images as part of memory training. He also used visuals, in the form of props, in his speeches. For this reason, he is considered one of Rome’s greatest orators and prose stylists.

Many teens love to socialize and do projects with their peers. Cooperative learning opportunities are highly effective in keeping students engaged and participating in lessons. With mysimpleshow, students can work in teams (either in small groups or with a partner) on video scripts and visualizations to aid in their collaboration skills.

Our Favorite Resource for Video Presentations

While there are many interactive presentation and slide show apps, mysimpleshow is our favorite resource for video presentations. It is the perfect medium your students need to make their project fun, engaging, and interesting.

mysimpleshow is an online tool that enables anyone to create concise and engaging explainer videos in just a few minutes. It is also a great option for teachers to create lessons and presentations with multimedia and interactive elements such as video, audio, and embedded assessments.

Writing the video script native to the mysimpleshow platform, enhances writing skills, as students need to use transition phrases and must only include the most relevant information to align with the storyline template’s character limits.

mysimpleshow video presentations

The screenshot visible above is excerpted from a video I put together for our Scout troop detailing the 2017 Total Solar Eclipse. On the left side, you can see two highlighted words – these are the words that are illustrated with graphics from the available gallery or images the user can upload.

I love that the user has the freedom to select the words to animate. As the slideshow plays, the selected image will appear as the narrator reads the highlighted word. The user will thereby need to make small adjustments to their script to assure the graphics appear in a timely manner – a great problem solving opportunity.

My daughter used mysimpleshow to create a fabulous explainer video for Ranger requirement #2g, “Make a presentation for your crew on communications equipment used in the outdoors with emphasis on how this equipment would help in a wilderness survival situation.”

 

She loved the flexibility of the program and looks forward to making another video to teach her Venturing Crew about Leave No Trace principles.

Finishing Strong #133

Welcome to Finishing Strong ~ a weekly link-up dedicated to families homeschooling middle & high school kids. Each Wednesday, moms just like you share their best tips, encouragement, advice, and more for teaching older kids at home.

I am delighted that families homeschooling middle and high school age students are coming together and finding inspiration in one another. That’s has been the goal of Finishing Strong since its inception. Thank you!!

Finishing Strong is hosted by me here at EvaVarga along with my friends – Heather from Blog She Wrote, Megan from Education Possible, and Heidi from Starts at Eight.

Finishing-Strong-500x500

Natural History with Mary Anning

We are in London this week where we visited the Natural History Museum. Here we saw the most complete Stegasarous skeleton as well as an amazing display of hummingbirds from around the world that was put together in two hundred years ago. Though the colors have since faded, it was still impressive.

w/ Sue at the Field Museum, ChicagoI was delighted to also see an exhibit celebrating the contributions to Paleontology of a young English woman in the early part of the 1800s. Learn more about her in my post, The Heroine of Lyme Regis: Mary Anning

I know you will find the posts that have been shared with us inspiring! Grab a cup of tea, kick back, and take some time to check out the wonderful posts shared below. What are your favorites?

IMG_1407

Finishing Strong

We hope you’ll take some time to check out the amazing posts that have been shared with us. We are so thankful to all of our readers and contributors who help make Finishing Strong a key resource for everyone homeschooling through the middle & high school years.

Below are some of the posts I enjoyed from last week, as well as the one that received the most clicks (in the #1 spot). Did I choose one of your favorites?

How to Homeschool Simply (the Teen Years) 

from Shelly of There’s No Place Like Home ~ “Homeschooling the teen years doesn’t have to be long, tedious, complicated, or burdensome.”

100 Proven Ways to Encourage Your Teen

from Ann of Annie & Everything ~ A great list of actions, words, and rewards to encourage our teens.

10 Volcano Activities for Middle School

from Megan of Education Possible ~ Go beyond the vinegar and baking soda models with these activities and resources for learning about volcanoes.

@ @ @

As always, thank you for helping us to make Finishing Strong a key resource for families who are homeschooling through the middle & high school years.

What are you going to share with us this week?

Guidelines:

  1. Link up to 3 posts from your blog. Make sure you use the exact URL to the post, not to your home page. You can add any post related to homeschooling middle and high school students. Posts unrelated to that will be removed.
  2. Please no advertising, individual Pinterest pins, Facebook, Twitter, or other link-up links!
  3. Grab our button to add to your post after you link it up. Each week we will be choosing our favorite posts to highlight on all 4 sites. If you were featured, we would love for you to use the “I was featured” button.
  4. The linky will go live on each co-host’s blog each Wednesday at 6am EST, and will be live until Tuesday at 11:55 pm.

Please Share!

Add our button to your post.

Homeschooling the Middle & High School Years

Were You Featured?

Grab an “I was featured” button!

Homeschooling the Middle & High School Years