If you’re searching for free kindergarten science activities, you’re in right place! Keep your learning spirit alive with our curated list of free kindergarten science activities like apple science, fall guess bags, printable sink & float, orange buoyancy, magnetic learning center, tornado,  dancing popcorn, oobleck slime, rain clouds, crystallized letters, sound and volume vibrations, little pigs, magnet maze game, seed germination and color-changing flowers.

Free Kindergarten Science Activities

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Apple Investigation STEM Activity for Kids

A hands-on science activity where children observe, describe, and analyze apples. Image Source/Tutorial: Preschool Play & Learn

Materials Required:

Apple, printable worksheet, pencil, crayons, magnifying glass (optional), scale (optional).

Procedure:

Observe the apple’s color, texture, smell, and taste, then record findings on the worksheet. Cut the apple open and complete the remaining investigation sections.

Fall Sensory Guessing Bag Activity

A fun mystery bag game to explore fall textures and objects using the sense of touch. Image Source/Tutorial: Simple Play Ideas

Materials Required:

Paper bags, fall items (apple, leaves, pinecone, acorns, scarf), marker.

Procedure:

Place one fall-themed object inside each paper bag. Have children feel inside without looking and guess the object.

Sink or Float Science Experiment

An engaging water play activity to explore buoyancy concepts. Image Source/Tutorial: Buggy and Buddy

Materials Required:

Clear plastic bin, water, assorted small objects (toy, cork, comb, etc.).

Procedure:

Fill the bin with water and gather different small objects. Drop each item into the water and observe whether it sinks or floats.

Floating Orange Science Experiment

Discover how the peel helps an orange float in water. Image Source/Tutorial: Playdough to Plato

Materials Required:

Whole orange, peeled orange, tall glass, water.

Procedure:

Place an unpeeled orange in water and observe that it floats. Remove the peel and test again to see how it changes.

Magnet Discovery Bottle Science Activity

Explore magnetism by testing which objects are attracted to a magnet. Image Source/Tutorial: Left Brain Craft Brain

Materials Required:

Clear plastic bottles, small metal and non-metal items, magnet wand, tray.

Procedure:

Place assorted objects inside bottles and secure the lids. Use a magnet to test which items move toward it.

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Water Density Layering Experiment

A visual experiment demonstrating how liquids of different densities form layers. Image Source/Tutorial: One Little Project

Materials Required:

Clear jar, water, sugar or salt, food coloring, spoon.

Procedure:

Mix different concentrations of colored water in separate cups. Slowly pour them into a jar to create visible layered density levels.

Soil Investigation and Discovery Activity

A hands-on outdoor science activity exploring soil composition. Image Source/Tutorial: Go Science Kids

Materials Required:

Soil, white cloth or tray, small shovel, magnifying glass.

Procedure:

Spread soil on a cloth and break apart clumps gently. Examine and identify rocks, roots, and other materials.

DIY Lava Lamp Science Experiment

Create a bubbling lava effect using simple kitchen ingredients. Image Source/Tutorial: Everyday Chaos and Calm

Materials Required:

Clear jar, water, vegetable oil, food coloring, baking soda, spoon.

Procedure:

Fill the jar with water and oil, then add food coloring. Drop in baking soda and watch the colorful bubbles rise and fall.

Homemade Slime Sensory Craft

A fun sensory activity that introduces simple chemical reactions. Image Source/Tutorial: ABCs of Literacy

Materials Required:

White glue, baking soda, contact lens solution, food coloring, bowl.

Procedure:

Mix glue, baking soda, and food coloring in a bowl. Add contact solution gradually and knead until slime forms.

Rain Cloud Water Cycle Experiment

A simple demonstration showing how rain forms in clouds. Image Source/Tutorial: One Little Project/Shaving Cream Rain Clouds

Materials Required:

Clear glass, water, shaving cream, food coloring, dropper.

Procedure:

Fill the glass with water and top with shaving cream as a cloud. Drop colored water onto the “cloud” and watch it fall like rain.

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DIY Crystal Letter Formation Activity

Grow sparkling crystals on pipe cleaner letters for a fun chemistry experiment. Image Source/Tutorial: A Gift of Curiosity

Materials Required:

Pipe cleaners, borax powder, hot water, food coloring, jar, string, pencil.

Procedure:

Shape a pipe cleaner into a letter and suspend it in a borax solution. Leave overnight to allow crystals to form on the letter.

Sound Vibration Science Activity

Explore how sound waves create vibrations you can see. Image Source/Tutorial: Premeditated Leftovers

Materials Required:

Bowl, plastic wrap, rubber band, small paper bits or rice, speaker/music source.

Procedure:

Stretch plastic wrap tightly over the bowl and place paper bits on top. Play music nearby and watch the vibrations move the pieces.

Gumdrop Building STEM Engineering Activity

Build simple 3D shapes while learning about engineering and stability. Image Source/Tutorial: Sweet Sounds of Kindergarten

Materials Required:

Gumdrops or marshmallows, toothpicks, flat plate.

Procedure:

Connect gumdrops using toothpicks to form squares or cubes. Experiment with different shapes to test strength and balance.

DIY Magnetic Maze Board Game

Guide a magnet through a maze without touching the walls. Image Source/Tutorial: Go Science Girls/Magnet Marble Maze

Materials Required:

Printed maze sheet, small magnet, paper clips, cardboard backing.

Procedure:

Attach a paper clip to a small game piece on top of the maze. Move a magnet underneath the board to guide it through the path.

Instant Snow Sensory Exploration

Create fluffy instant snow for hands-on winter science fun. Image Source/Tutorial: How Wee Learn

Materials Required:

Instant snow powder, water, jar or container, spoon.

Procedure:

Add water gradually to instant snow powder inside the jar. Stir and watch it expand into soft, fluffy snow.

Color Changing Flower Experiment

Observe how flowers absorb colored water through their stems. Image Source/Tutorial: Fun Learning for Kids

Materials Required:

White carnations, clear cups, water, food coloring.

Procedure:

Fill cups with water and add different food coloring colors. Place flowers in the cups and observe color changes over time.

I hope you like our list of Free Kindergarten Science Activities and will surely try to make them.
If you like our ideas and want to read more crafts ideas, Keep visiting our website for the latest DIY ideas and other creative stuff for kids, parents, and teachers.
Please let us know in the comment section which Science Activity you like the most.

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