Browse Science Experiments by Category

Explore our collection of free printable experiment notebooks for preschool, kindergarten, and elementary students.

Join Leo and George as they investigate plants, the human body, healthy habits, animals, food, weather, time, and science through fun, hands-on experiments and observations. Perfect for teachers, parents, homeschool families, and curious young learners.

🌱Amazing Plants🌱

Discover free printable plant science experiments that help children explore how plants grow, absorb water, spread seeds, and survive in different environments. Perfect for preschool, kindergarten, and elementary students who love hands-on science and nature activities.

  • Water Travels Inside Plants

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🧍 Amazing Body🧍

Explore free printable human body science experiments that teach children about the heart, lungs, muscles, bones, senses, and more. These fun, hands-on activities help preschool, kindergarten, and elementary students understand how their amazing bodies work.

  • The Secret of Our Breath
  • What Happens to Your Heart When You Exercise?
  • How Do We Hear Sounds?
  • Our Amazing Nose
  • All About Taste
  • Our Eyes Are Amazing
  • What Did You Eat Today?

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❤️Keep Us Healthy❤️

Learn healthy habits through free printable science experiments and activities. Discover why we wash our hands, brush our teeth, eat healthy foods, exercise, and make good choices with engaging experiments designed for young learners.

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🐾Wonderful Animals🐾

Explore free printable animal science experiments and observation activities that help children learn about animal habitats, behaviors, adaptations, and life cycles. Perfect for curious preschool, kindergarten, and elementary students.

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🍎 Delicious Food🍎

Discover free printable food science experiments that make learning delicious! Explore nutrition, fruits, vegetables, cooking, and fun food reactions through hands-on activities that help children understand the science behind everyday foods.

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☀️Fantastic Weather☀️

Explore free printable weather science experiments that help children investigate rain, clouds, wind, rainbows, snow, and sunshine. These engaging STEM activities encourage observation, prediction, and scientific thinking through real-world weather.

  • Rainy Day Nature Quiz!
  • Experiments of Rain
  • Let’s Make a Rainbow

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🕒Secret of Time🕒

Discover free printable time and space science activities that explore clocks, seasons, the Moon, the Sun, Earth’s movements, and the calendar. These hands-on experiments help children understand how time works in our everyday lives.

  • What Time Did You Wake Up?

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🧪Fun Science🧪

Enjoy free printable science experiments that spark curiosity and creativity! From colorful chemical reactions to exciting physics activities, these easy STEM experiments encourage children to ask questions, make predictions, and discover how the world works.

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🪐Universe🪐

Explore free printable space and universe science experiment notebooks that encourage children to observe, explore, and discover the wonders of the solar system, planets, the Moon, stars, and beyond.

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🌍 Explore the World🌍

Explore free printable geography experiment notebooks, observation journals, and interview activities that encourage children to discover continents, oceans, countries, cultures, and the amazing world around them.

  • Let’s Ask People from Different Countries!

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