Showing Results for compare with same denominators 1 : Page 24

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Explore the neural and mental mechanisms at play in mental imagery.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

This science fair project idea raises awareness of a real ecological issue.

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

The goal of this science fair project was to examine how different angles of decline affect the tipping point of a vehicle.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

This fascinating science fair project explores eye color genotypes.

Will the shape of an ice cube impact how fast the ice melts?

Science fair project that tests whether cats have a preference for organic food.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications