Preschool - 4th Grade Science Activities : Page 15

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

The goal of this project is to create an exciting topographical map out of dough.

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

Give your science savvy kindergarten a lesson in plant science with this fun carnation experiment.

Checkerboard play challenges students to use spatial reasoning and computational thinking.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Help your child learn about animal classification with this fun and delicious activity.

Make a bear cave for your child to play and explore, learning about bears and winter hibernation.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

In this activity, you child will learn about how heat changes food. On the next sunny day, head outdoors to make a treat in an outside oven! Here's how:

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

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

This plaster fossil activity is a fun supplement to preschool science. Use plaster to make imprints of your child's handprints, footprints and other objects!

This science fair project teaches students the differences between fruits and vegetables.

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

This science fair project idea examines the reason boats are shaped and engineered.

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

Plant a mini herb garden and teach your child about science and nature.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

Help your child make a beautiful homemade sandcastle that will last!

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.