Showing Results for three digit and two step word problems : Page 2

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This science fair project idea investigates whether plants can survive being frozen.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

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

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

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

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project idea explores the different properties & interactions of sugar molecules.

Find out whether putting something on top of a plant will inhibit its growth.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.