Showing Results for add and subtract

This science fair project idea investigates if fats add to the flavor of food.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Here's a first grade ladybug game that explores how air can move solid objects, and adds some measurement practice, too. Play, learn, and enjoy!

This science fair project will help students learn about non-vascular plants, such as mosses.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Learn all about balance and motion as your child designs a corn maze!

People have favorite flavors, but what about ants? Which ant food is the most popular?

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Children are imaginative story-builders. Create a shoebox habitat with your child to put those budding creative instincts to good use.

Forget store-bought dyes this Easter: color your Easter eggs with natural dyes made with ingredients from your own kitchen in this 1st grade activity.

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

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!