Showing Results for compare with same denominators 2 : Page 4

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Do you think heat can affect a plant's growth rate?

Discover flight initiation distance as you play around in the park with this fun bird watching project!

Magnets may hold up papers on the fridge, but is it the paper that attracts them? Find out more with this kindergarten science investigation.

This science fair project idea explores how length affects the weight a bridge can hold.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science experiment tests if dog saliva can really help heal wounds.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

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

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Demonstrate how to tell the age of an egg without having to crack it open.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project idea explores whether talking to a plant will help it grow.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.