Showing Results for three digit and two step word problems : Page 18

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Make a lei and bring a touch of the tropical lifestyle into your home!

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

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.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Try this chemistry experiment with your curious kid and get some "shocking" results!

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Lead your first grader on a nature walk ... with a scavenger hunt-style twist! They'll try to capture photos that correspond to paint chip colors.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!

This science fair project idea investigates the difference in reaction times between boys and girls.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea investigates how color affects temperature.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.