Fun STEM Activities For Preschool

by | Jul 17, 2023 | Science Projects, Top

Home » Top » Science Projects » Fun STEM Activities For Preschool

Engaging preschoolers in STEM (Science, Technology, Engineering, and Mathematics) activities is a fantastic way to foster their curiosity, develop critical thinking skills, and lay the foundation for a lifelong love of learning. In this blog, we have curated a list of fun STEM Activities for Preschool that will help build a scientific temperament among the students. These STEM activities for preschool encompass a range of topics and concepts, allowing kids to explore the natural world, engage with technology, experiment with engineering principles, and develop mathematical thinking. From building structures with blocks to conducting simple science experiments, each activity offers opportunities for children to develop their cognitive, social, and motor skills.

By introducing STEM at an early age, preschoolers develop a strong foundation in these subjects and gain confidence in their ability to explore and understand complex concepts. Here we will explore a variety of hands-on projects that encompass science experiments, engineering challenges, mathematical puzzles, and technological explorations.

List of Fun STEM Activities For Preschool

1. Seed Planting

Seed planting is an engaging activity for preschoolers. It allows children to observe and participate in the life cycle of plants, fostering their curiosity and love for nature. This STEM activity teaches children about plant biology and incorporates mathematical concepts.

Fun STEM Activities For Preschool - Seed Planting

To perform this STEM activity:

  • Gather small pots or cups, potting soil, and seeds.
  • Explain to the children the different parts of a seed, such as the seed coat, embryo, and food source, and discuss the importance of water, sunlight, and soil in plant growth.
  • Guide the children as they fill their pots with potting soil.
  • Discuss the importance of water and instruct them on how to water their pots gently.
  • As the days pass, encourage children to care for their plants by watering them regularly and placing them in a sunny spot.
  • Observe and discuss the changes that occur, such as the emergence of seedlings, the growth of leaves and stems, and the eventual blooming of flowers or the formation of fruits.

2. Nature Scavenger Hunt

Next on the list of STEM activities for preschool is a nature scavenger hunt. This is another exciting STEM activity that encourages preschoolers to explore the natural world while incorporating elements of science, technology, engineering, and mathematics.

Fun STEM Activities For Preschool - Nature Scavenger Hunt

To perform this STEM activity:

  • Create a list of items found in nature that children can search for during the scavenger hunt. Include different types of leaves, rocks, insects, flowers, or animal tracks.
  • Provide each child with a bag or basket to collect their treasures and a magnifying glass for closer inspection.
  • Explain the rules for the scavenger hunt and encourage the children to work individually or in small groups to find many items within a designated area, such as a park or nature trail.
  • Encourage them to examine the items they find, ask questions about their characteristics, and discuss their observations.

3. Tinker Toys

Tinker Toys are a fantastic STEM activity for preschoolers that provides endless possibilities for building and exploring, incorporating elements of science, technology, engineering, and mathematics in a hands-on and engaging way. These Toys typically consist of interlocking components such as wooden or plastic rods, connectors, and wheels.

Fun STEM Activities For Preschool - Tinker Toys

As they build, they are engaged in the principles of engineering and design, experimenting with different shapes, sizes, and connections to create innovative designs. Through Tinker Toys, children also learn scientific concepts such as cause and effect, balance, and stability.

Children can explore basic geometry by identifying and manipulating shapes such as squares, triangles, or circles. They can add wheels or axles to their creations. It helps them explore the principles of motion and force. Tinker Toys also encourage collaborative play and communication skills.

4. Puzzles and Patterns

Puzzles and patterns are one of excellent STEM activities for preschool that promote cognitive development, problem-solving skills, and logical thinking. These engaging activities incorporate mathematics and critical thinking while providing a fun and interactive learning experience.

Fun STEM Activities For Preschool - Puzzles and Patterns

Puzzles, such as jigsaw, shape, or picture puzzles, challenge children to analyze and manipulate pieces to form a complete picture or pattern. They develop spatial awareness, hand-eye coordination, and fine motor skills. They learn to recognize shapes, colours, and patterns, fostering early mathematical concepts.

Patterns introduce children to the concepts of sequence and order. Children can engage in pattern recognition by completing pattern cards or creating their patterns using objects like blocks, beads, or coloured tiles. Children can discuss their strategies, exchange ideas, and help each other solve puzzles, fostering social development and cooperative skills.

5. DIY Kaleidoscope

Preschoolers learn about concepts like light, reflection, symmetry, and geometry through the DIY kaleidoscope activity. This activity encourages children to use their fine motor skills, creativity, and imagination as they decorate the kaleidoscope and select objects for colourful displays.

DIY Kaleidoscope

To perform this STEM activity:

  • Gather materials, including a cardboard tube, a plastic or glass cover, colourful beads or small objects, a mirror or reflective paper, and adhesive tape or glue.
  • Begin by cutting the cardboard tube into a shorter length, approximately 4 to 6 inches.
  • Attach the clear plastic or glass cover to one end of the tube. Attach a small mirror or piece of reflective paper inside the tube at a 45-degree angle using tape or glue. This will produce the kaleidoscope’s reflection effect.
  • To complete the kaleidoscope, add colourful beads or small objects to the open end of the tube. Once the beads are in place, close the open end of the tube with the cover.
  • When children look through the clear cover, they will see a mesmerizing display of colourful patterns created by the reflection and symmetry within the kaleidoscope.

6. Vegetable Garden

The vegetable garden provides opportunities to incorporate technology and engineering. This activity introduces preschoolers to scientific concepts such as photosynthesis, the role of insects in pollination, and the importance of environmental factors in plant health.

Vegetable Garden

To perform this STEM activity:

  • Select a small plot of land in your backyard.
  • Involve the children in preparing the soil, digging small holes, and planting seeds or seedlings.
  • Choose simple and fast-growing vegetables like lettuce, carrots, or radishes.
  • Throughout the growing season, children can observe the plants’ life cycle, from seed germination to the formation of leaves and flowers to the harvest of edible vegetables.
  • Discuss the importance of water, sunlight, and soil nutrients in plant growth, and involve the children in watering and caring for the plants.
  • They can also build simple structures like trellises or stakes to support climbing plants, fostering their engineering and problem-solving skills.

7. Sink or Float Challenge

Next on our list of STEM Activities For Preschool is the sink or float challenge. This fun activity allows children to explore the concepts of buoyancy and density while engaging in hands-on experimentation.

Sink or Float Challenge

To perform this STEM activity:

  • Gather a variety of objects with different sizes, shapes, and materials. Include rocks, feathers, plastic toys, coins, or wooden blocks. Fill a large container with water.
  • Present each object to the children and ask them to predict whether it will sink or float.
  • Drop the object into the water and observe the outcome. Discuss the results and ask the children to explain their predictions.
  • Through this activity, children learn about the concepts of buoyancy and density. They discover that objects with higher density sink while others with lower density float.
  • They can engage in measurement by estimating and recording the weight or volume of the objects.

8. DIY Xylophone

The DIY xylophone introduces basic engineering concepts such as structure, stability, and balance. It provides a hands-on experience for preschoolers to explore the principles of sound, pitch, and basic engineering principles.

DIY Xylophone

To perform this STEM activity:

  • Gather materials such as wooden or metal bars of different lengths, a sturdy base, and mallets or sticks for striking the bars.
  • Start by arranging the bars on the base in a line or stair-step pattern, with the shorter bars at one end and the longer ones at the other.
  • Secure the bars to the base using nails, screws, or adhesive materials like strong glue or tape.
  • Once the xylophone structure is complete, invite children to explore the sounds it produces.
  • They learn about the relationship between bar length and pitch, discovering that longer bars produce lower tones while shorter bars produce higher tones.

9. Shadow Puppet Show

The shadow puppet show incorporates technological elements as children use light sources and observe the effects of shadows. This activity allows preschoolers to explore light, shadow, storytelling, and basic engineering principles.

Shadow Puppet Show

To perform this STEM activity:

  • Gather materials: a light source, a large white screen or wall, and cut-out puppets made of cardstock or sturdy paper. Encourage children to design and create puppets representing characters, animals, or objects.
  • Place the light source behind the screen.
  • Invite children to take turns manipulating the puppets in front of the light source while others watch the resulting shadows on the screen.
  • Encourage the children to tell stories or create scenes using their shadow puppets. Discuss the concepts of light and shadow. Explain how shadows form when an object blocks the path of light.
  • Through this activity, children learn about the properties of light and the principles of shadow formation.

10. Simple Circuit Exploration

Last on the list of STEM Activities For Preschool is a Simple circuit exploration. This educational activity introduces preschoolers to basic electrical concepts while fostering curiosity and critical thinking skills. It allows children to explore the basics of electricity, engage in hands-on experimentation, and develop an appreciation for technology and engineering.

Simple Circuit Exploration

To perform this STEM activity:

  • Gather materials such as batteries, copper wire, and small LED lights.
  • Explain to the children the components of a circuit, including a power source (battery), a conductive material (wire), and a load (light bulb).
  • Demonstrate how to connect the components to create a simple circuit and light up the LED light.
  • Encourage children to explore and experiment with the components. Discuss the concepts of open and closed circuits, explaining how the flow of electricity is complete when the circuit is closed.
  • They develop an understanding of cause and effect as they observe how the LED light turns on when the circuit is closed.


Engaging preschoolers in fun STEM activities provides them with valuable opportunities to explore, discover, and learn through play. By incorporating science, technology, engineering, and mathematics concepts into hands-on experiences, we can nurture their curiosity, critical thinking, and problem-solving skills. These activities lay the foundation for a lifelong love of learning while fostering cognitive, social, and motor development. Whether it’s building structures, conducting experiments, or exploring the natural world, STEM activities for preschoolers offer endless possibilities for exploration and growth.

Also Read: Best Science Projects for 2nd Graders


You May Also Like To Create…