Showing Results for add and subtract

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

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!

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

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

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.

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.

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.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

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.

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.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!