Seventh Grade, Environmental Engineering Science Experiments (Page 2)

Make an Automatic Evaporative Cooling System

Science Fair Project Idea

Engineering Design Process

You probably know that sweat helps cool your skin on a hot day because of evaporation. But do you think you can use evaporation to cool a building? Evaporative cooling systems could provide a more environmentally-friendly alternative to traditional air conditioning. In this engineering project you will build and try to optimize your own model evaporative cooling system. Read more

Solar-Powered Salt Removal

Science Fair Project Idea

Scientific Method

Have you ever thought about being stranded on a desert island? How would you find water to drink? What would you need to survive? In this science fair project you'll discover how to turn the ocean into a source of freshwater by using the power of the Sun. Read more

Sorbent Science: Cleaning Up Oil Spills

STEM Activity

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Have you ever seen news coverage or other pictures of an oil spill in the ocean and wondered how all of that oil could be cleaned up? Oil spills can devastate wildlife by covering them with oil, and they can damage our precious water resources by contaminating them with oil. Part of the problem of managing oil spills is that the oil can be challenging to clean up. In this science activity, you can test the absorptivity of different materials (called sorbents) to discover which ones are best at… Read more

Time to Spring Clean…Your Water!

STEM Activity

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It’s easy to take our clean water for granted, we’re so used to being able to drink from a fountain or faucet whenever we’re thirsty. But did you know that over 1 billion people in the world don’t have access to clean water? Part of the problem is that cleaning (or purifying) water is not an easy task. Not only do you need to remove dirt and other debris, you also have to get rid of all the invisible bacteria and micro-organisms that can make people sick. In this… Read more

Can Nanotechnology Help Clean Up Ocean Oil Spills? Try It Yourself with Ferrofluid

Science Fair Project Idea

Scientific Method

The enormous task of cleaning up oil spills in oceans and seas has burdened industry, government, and environmentalists for decades. The cleanup is almost always difficult. It involves great amounts of time, resources, and money to remove the oil from the water, and the cleanup is often only partially successful. Today, however, scientists are coming to the rescue, developing a new technique that combines nanotechnology and magnetism. In this science project, you will test the proposed… Read more

Can the Color of Your House Reduce Your Energy Footprint?

STEM Activity

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Have you ever wondered if changing the color of your house does anything other than alter its appearance? Could it also be doing something as practical as influencing how much money is spent on energy bills? On hot summer days, people consume a lot of energy to keep their houses cool. If less energy could be used to do this, not only would it save people money, it might also help the environment by decreasing the amount of energy we use! In this activity, you will test which colors may keep a… Read more

Can the Color of Your House Reduce Your Energy Footprint?

Science Fair Project Idea

Scientific Method

Did you know that the color of your house could save money? Do this experiment to see which colors regulate temperature best in different environments. Then convince your parents to paint the house and save some money on their energy bill. Maybe they will be so happy they will also increase your allowance! Read more

Clean Up The Water with a Trash-Skimming Robot

Science Fair Project Idea

Engineering Design Process

Engineers are trying to tackle the world's ocean pollution problem using robots. Some robots, like Mr. Trash Wheel and the ship featured in this Mark Rober video, are stationary and collect trash as it flows out of rivers before it gets into the ocean. Others, like the Jellyfishbot, are mobile and can squeeze into narrower spaces to collect trash: Can you build and test your own trash-skimming robot? If you do not have access to a natural body of water to test it in, you can use a bathtub or a… Read more

Cold Room? Heat It Up with A Homemade Solar Air Heater

Science Fair Project Idea

Scientific Method

What do humans need to survive? We need food, water, and warm shelter. We all need a warm place to live, particularly when it's chilly outside. How do many of us warm our houses or apartments? We depend on fossil fuels to supply gas and electricity to our heaters. But burning fossil fuels to create energy is harmful to the environment. What if there was a way to warm our homes without burning fossil fuels and it was free? In this science fair project, you will build a solar air heater and see… Read more

Do Your Storm Drains Keep the Ocean Trash Free?

Science Fair Project Idea

Scientific Method

Did you know that there is plastic in the ocean? It probably isn't too hard to imagine that some of the plastic that litters roadways, sidewalks, and parks finds its way into the ocean. So, how much do you think is in there? Hundreds of pounds of plastic? How about thousands of pounds? No one knows for sure, but estimates, based on scientific surveys, suggest the amount is in the range of millions of pounds of plastic! Of course, the ocean is big, over 300 million square kilometers, so… Read more

Seventh Grade, Environmental Engineering Science Experiments (42 results)

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