Ninth Grade, Environmental Engineering Science Experiments (Page 4)

Science Fair Project Idea

Scientific Method

One way to save water is to turn the faucet off while you brush your teeth. But did you know that there are products that can help save water even while the water is on? In this experiment find out how low-flow faucets and aerators work to reduce the flow of water. How much water can you save? Read more

Remodeling and Energy Efficiency

Science Fair Project Idea

Scientific Method

Has your house (or one of your friend's houses) been remodeled recently? Were any improvements made for energy efficiency (solar systems, better insulation, passive solar heating, better lighting)? Compare your family's energy costs for a similar time period before and after the remodeling (remember that energy usage often varies seasonally). Monthly bills often have a bar graph showing energy usage for the previous 12 months. You may also be able to get information on past energy usage… Read more

Riprap: It's Not Hip Hop But Erosion Stop

Science Fair Project Idea

Scientific Method

Have you ever been to the Grand Canyon and seen what water can do over millions of years? When you turn on the faucet, do you see water come out, or mud? In this experiment you'll find out how engineers help prevent erosion, which keeps dirt out of our water. Read more

Rooftop Gardens: Are They a Cool Idea?

Science Fair Project Idea

Scientific Method

Would you like some sky vegetables for dinner? How about some fresh-cut roof flowers to put in vases in your house? Around the world, rooftops are being transformed into living green expanses. Besides beauty, rooftop gardens have a number of advantages, including growing food and taking carbon dioxide out of the air while releasing breathable oxygen. But can rooftop gardens also keep your house cooler and lower your energy bill? Try this science fair project to find out. Read more

Salvage Science: Build and Test an Indoor Composter

STEM Activity

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Have you ever seen a product labeled “biodegradable” or “compostable” and wondered just how well it decomposes? A lot of different products claim to be biodegradable or compostable, such as food containers, bags, packaging materials, and spoons and forks. Not only do they clearly come in different shapes and sizes, but they’re made of different materials as well. Do they decompose differently, and, if so, which decomposes the fastest? In… Read more

Sliding Science: How are Landslides Caused?

STEM Activity

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Have you ever seen a video of a landslide? Landslides are powerful geological events that happen suddenly, causing fear in people who live in areas with unstable hills, slopes and cliff sides. Each year in the United States, landslides can cause billions of dollars in damages, in addition to changing the environment and damaging the surrounding habitats. In this science activity, you will model landslides using a clipboard and pennies, and investigate how friction and the angle of a… Read more

Smart Watering: Adjusting Your Sprinklers for Optimal Soil Moisture

Science Fair Project Idea

Scientific Method

Did you know that you can use more water on your lawn and garden in the summer than you use for all other purposes all year long? If you have an automated sprinkler system for your lawn and/or garden, this project could save money on your family's monthly water bill. You'll also be helping to conserve a precious natural resource: clean water. Read more

Sweltering Science: Are Rooftop Gardens a Cool Idea?

STEM Activity

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Have you ever seen a rooftop garden? Around the world, rooftops are being transformed into living green expanses. Besides beauty, rooftop gardens have a number of advantages, including growing food. How would you like some sky vegetables for dinner, or some fresh-cut roof flowers to put in vases in your house? Rooftop gardens can also take carbon dioxide out of the air while releasing breathable oxygen. But can rooftop gardens also keep your house cooler and lower… 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

Water-Wise: Building a Rainwater Collection System

Science Fair Project Idea

Scientific Method

We are all familiar with the nursery rhyme, "Rain, rain, go away, come again some other day...", or the song "Singin' in the Rain." Numerous songs and stories describe our feelings about rain. Why so many? Because we humans understand how important rain is to our well-being. Rainfall, as part of the water cycle, brings water back to Earth that had previously evaporated or transpired from the surface. When water vapor in the atmosphere condenses into clouds and falls back to Earth as rain,… Read more

Ninth Grade, Environmental Engineering Science Experiments (42 results)

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