Showing Results for add and subtract

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

Help your child add some flair to the family garden with pencil pinwheels!

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

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Your child will decorate a headband with any bugs they can think of, then they'll add antennae so they can pretend to be a bug!

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.

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

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.

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

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!

Travel back to the Jurassic age with this creative dinosaur activity that would make a great addition to any wall or fridge.

Help your child create a garden journal sketchbook as she observes and records the natural world through the changing seasons.

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!

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

It's easy to plant your own in-home container garden! This planter contains pizza-themed herbs and is a perfect early gardening activity for kindergarteners.

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?

Who says snow globes are just for winter? Help your child create a summer version with this fun art project!

In this design challenge, your child will use building bricks to create a funny face. The activity instructions include question prompts thta can help guide your child through the creative process, and promote their problem-solving skills.

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!