Ninth Grade Science Experiments (Page 128)

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Have you ever thought about where the vegetables you eat are coming from when it is too cold outside to grow them? They might have been shipped from a different country to your home town, or they may have been grown locally in a greenhouse. Greenhouses are huge house-like structures that are usually made mostly of glass. How can they protect plants from the cold? In this activity, you will find out and create some extra heat from the sun. Read more

Helicopter Liftoff: How Does the Speed of the Rotor Affect the Amount of Lift?

Science Fair Project Idea

Scientific Method

Helicopters are fascinating to watch. The spinning rotor blades on top of the helicopter generate lift, allowing it to take off vertically. They can land vertically, too, allowing them to set down in small spaces, such as hospital helipads or on a ship at sea. In this aerodynamics science fair project, you will fly a remote-controlled helicopter and measure how the rate of the rotor's rotation changes as the helicopter hovers and flies up or down. Read more

Hello, Noise: Doing Fun Science at Home during School Closures (Activity #11)

Blog Post

Follow along with a Science Buddies parent who is using family STEM activities to keep her kids learning at home during the COVID-19 school shutdown. New posts every Monday, Wednesday, and Friday. Today's adventure... constructing a rubber band guitar. Quarantine with Kids is Not Quiet How's it going at your house? Are you managing to find moments of quiet? I've given up. In my house, quarantine is noisy. There are arguments, video game music,… Read more

Holiday STEM Projects to Make and Give

Blog Post

These 16 activities combine creativity, science, and engineering to make unique STEM gifts students can make to keep or to give! Science and Engineering to Make and Give Do your students like to do projects that give them a take-away at the end? Many students especially enjoy projects that result in a finished product they can use, display, keep, or share. All of the projects and activities below provide opportunities for STEM learning and result in… Read more

Household Water Usage

Science Fair Project Idea

Scientific Method

How much water do you use? Conserving water can do more than save your parents' money, it can also save freshwater ecosystems, wetlands, and watersheds. Some companies are trying to help fix the problem by making low flow faucets and showerheads. How well do they work? How much water can you save? Go to the hardware store to buy a few of the water saving products. Compare the amount of water that you run over a period of time to determine how much water you can save. Which water saving… Read more

How a Comet's Size Affects How Fast It Melts

Science Fair Project Idea

Scientific Method

Comets—big lumps of rock, ice, and frozen gases that orbit the Sun—are among the most amazing heavenly objects seen in the night sky. The glowing tail behind the comet's nucleus inspires wonder. But did you know that a comet's tail is evidence that it's melting? As a comet passes by the Sun on its orbital path, it starts to melt. But do bigger comets melt faster than smaller comets? In this astronomy science project, you will investigate how the size of the comet affects the… Read more

How Antibiotic Resistant Bacteria Take Over

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Have you ever had to take antibiotics? Your doctor probably told you to finish taking all the pills even if you felt better after one or two days. But why is that? Why shouldn't you stop taking antibiotics as soon as you feel better? You might be surprised to hear that if you do, you might contribute to the creation of antibiotic resistant "superbugs!" Find out how these superbugs can develop in this activity by rolling dice to model how different bacteria respond to an antibiotic treatment. Read more

How Biodiverse is Your Backyard?

STEM Activity

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Have you ever wondered how many different types of animals live around your home, like in your backyard or a local park? Animals come in all shapes and sizes, each a small part of the amazing diversity of life. These differences can help people use systems to classify animals into different groups. One way people classify animals is by their phylum. Do you know which phylum you belong to? In this science activity, you will investigate the diversity (or biodiversity) of the animal life around… Read more

How Can Life Survive on a Planet with Extreme Tidal Locking?

Science Fair Project Idea

Scientific Method

Have you ever wondered what life might look like on other planets? Life might need to survive conditions that would seem very extreme to us. Such conditions likely exist on planets that orbit abundant red dwarf stars. These planets can undergo tidal locking, which means one side is a perpetual, freezing night and the other is a perpetual, scorching day! How does life stand a chance? In this science project, you will test what extreme temperatures microscopic life can survive to model some of… Read more

How Can Your Faucet Save Water?

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

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