25+ Summer Science Activities for Kids

Summer has a way of making science feel a little more magical. Ice melts beneath warm hands, bubbles drift across the yard, and colors swirl through water as ordinary afternoons become unforgettable discoveries. Some of the best summer science activities never feel like lessons. They feel like play. As children mix, pour, freeze, launch, paint, and experiment, they are making observations, asking questions, and learning through every discovery. Inside you'll find our favorite summer science activities for kids, from sunshine-inspired STEM projects and cooling ice experiments to colorful reactions, backyard discoveries, and bubble activities that make the most of long summer days. Whether you're planning a week of summer learning, searching for an easy afternoon activity, or simply looking for fresh ways to keep curious minds engaged while school is out, you'll find plenty of ideas to inspire your next adventure.

Science Experiments for Kids

Science has a magical way of pulling kids in. A few drops of color hit water, and suddenly they are watching closely. A spoonful of baking soda begins to fizz, and kids lean in to see what happens next. Oil separates from water. A cloud forms inside a jar. A crystal begins to grow. And before long, children are not just watching anymore. They are predicting, testing, comparing, asking questions, and trying it again a different way. That is what makes science experiments so powerful for kids. They feel like play. They look like magic. But underneath it all, children are observing real changes, exploring cause and effect, and learning through hands-on discovery. Over the years we have shared science experiments that fizz, glow, freeze, melt, swirl, separate, grow, and transform in ways that capture a child's attention. Some create an immediate reaction. Others unfold slowly over time. Each one invites kids to observe, question, experiment, and discover something new. This collec...

Solar Oven S'mores for Kids

There is something magical about making s'mores on a summer day. Now, imagine making them without a campfire or any fire at all. This solar s'more activity uses sunlight to melt chocolate and marshmallows inside a homemade solar oven. Kids get to build, observe, experiment, and enjoy a delicious treat at the end. Part science experiment and part summer adventure, this activity transforms an ordinary pizza box into an exciting hands-on lesson about solar energy. If your children enjoy hands-on activities, be sure to explore our Play Recipes for Kids collection for homemade slime, sensory fillers, chalk recipes, science activities, and more.

Firecracker Oobleck for Kids

Kids expect fireworks to light up the sky. They don't expect to feel them crackling in their hands. This firecracker Oobleck combines the strange texture of goop with the crackling sound of Pop Rocks for an experience kids won't forget. As the candy crackles and snaps beneath little fingers, children can swirl colors, squeeze the goop, and explore an activity that engages sight, sound, touch, and smell in one unforgettable experience. It is messy. It is colorful. It is noisy. And it is perfect for summer play, patriotic celebrations, or any time kids want something a little unexpected.