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

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

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

This fun and crafty activity is easy enough for your child to lend a helping hand and makes a great indoor or outdoor game.

This science fair project idea designs safe bicycle routes using GPS.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Construct batteries that make electricity from fruits with this fun science fair project.

Think about the adaptive utility of an important aspect of our physiology.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

This project investigates the affect of storage temperature on microwave popcorn.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

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

Science fair project idea examines what is remembered from high school education. Formulate and administer high school curriculum tests to adults over 21.

The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

The goal of this science fair project is to demonstrate magnetic forces of attraction and repulsion using a magnet and everyday objects.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!