Seventh Grade Science Experiments (Page 113)

Science Fair Project Idea

Scientific Method

Global warming, climate change, melting ice caps—these are all big events that have an impact our environment. What can we do to help reduce the impact? We can reduce, reuse, and recycle. What can cities do to help? Cities can eliminate waste by saving energy. Cities around the world are switching from incandescent traffic signals to LED traffic signals to save energy and money. That's because LEDs are more efficient than incandescent lamps, which means that LEDs produce more light… Read more

Enjoy It Now... Or Enjoy It Later? Understanding Delayed Gratification

Science Fair Project Idea

Scientific Method

Have you ever thought to yourself, "I have got to have that new video game right now?" Or maybe there's a new shirt at the store that you just have to have. So you rush home, break into your bank, and gather all of your money, even though you have been saving to buy your mom a gift. But wait! Maybe if you do a few more chores and save for just a few more days, you can gather enough money to buy your mom a gift and buy what you want. This behavior is called delayed gratification and it's what… Read more

Environmental Education STEM Project Roundup!

Blog Post

Science Buddies has great ideas for hands-on science projects and activities students can do to learn more about environmental science and sustainability. There are many projects at Science Buddies that help guide students in independent exploration of environmental science topics and issues. The list below highlights 22 projects related to recycling, stewardship, conservation, sustainability, and environmental awareness from our library of more than 1,100 science projects for K-12 students.… Read more

Evolution of Friendship Groups Over Time

Science Fair Project Idea

Scientific Method

This project asks the question "How do friendship groups change over time?" The results may support inferences about how "people skills" develop. What types of changes would you expect to see? Do you expect friendship groups to grow larger over time? Do you expect that individuals will belong to more, less or about the same number of friendship groups as they get older? Do you think there will be more or less exclusivity among groups (and how would you measure such a concept)? Do you… Read more

Experiment with Making Gels

Science Fair Project Idea

Scientific Method

Chances are, you have several materials around your house made of gelatinized materials. Gels are used in all kinds of products and materials: pudding, diapers, insoles, packaging, ice cream, toothpaste, and many more. In this project, find out how gels are made and how they can be adjusted from firm to soft by changing the ingredients. Read more

Explore How Lung Infection Influences Breathing

STEM Activity

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Have you ever coughed, felt short of breath because you were sick, or felt it was hard work to take a breath? Maybe you have watched someone gasping for air. At times, these events can feel scary! This activity explores how mucus and fluid in the lungs or airways changes our breathing using a simple lung model. It can help you understand why symptoms like coughing and being short of breath happen. Read more

Explore Magnification with a Drop of Water: Weekly Science Spotlight

Blog Post

What happens when you look through water at something below it? Does the object (or image) appear larger? Does it appear smaller? How much larger or smaller? It may depend on the shape of the water. Viewing something through a drop of water may make the object or image appear larger. Viewing through a layer of water in a container like a cup, on the other hand, may have a different effect because the curvature of the water is different. (The size of the drop of water may also make a… Read more

Explore Nanotechnology with Paper: Weekly Science Activity

Blog Post

In this week's spotlight: a materials science activity that gives families a hands-on look at nanotechnology. Materials coming out of nanotechnology research are often lighter and stronger than traditional materials. Nanotechnology scientists are working with matter at the nanoscale, which means they are working with individual atoms and molecules. By altering the structure and arrangement of particles, scientists are creating and discovering new materials that have exciting new… Read more

Extracting Heat Energy from a Compost Pile

Science Fair Project Idea

Scientific Method

Earth, the Sun, wind, and water are all sources of renewable and sustainable energy—and sources you probably already know about. But did you know that you can get energy from such things as banana peels, coffee grounds, and newspaper? In a process called composting, you can transform kitchen and other solid wastes into a product that is beneficial for your garden: homemade fertilizer. As the waste decomposes, it also creates heat. Can this naturally created heat be put to use? In this… Read more

Extreme Sounds: Lessons in a Noisy World

Science Fair Project Idea

Scientific Method

Can you hear me now . . . ? Just how loud does a sound have to be for us to hear it? And how loud is too loud for our ears? Learn to measure levels of sound in this project, and discover the amazing auditory range your ears can detect in the noisy world around you. If you have a smartphone handy, you can even do this project without purchasing any additional materials, by using your phone's sound sensor and a sensor app. Read more

Seventh Grade Science Experiments (top 2,000 results)

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