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Preschool Science Experiments Kids Love!

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science experiments for preschoolers

As a parent of a toddler, you are probably eager to help your little ones explore and understand the world around them. Preschool science experiments can be an excellent way to introduce preschoolers to basic scientific concepts, and the best part is that they can be fun and engaging! In this post, we will share evidence-based advice on how to create exciting and age-appropriate science activities for your curious child. So, let’s dive into the exciting world of science experiments and watch your preschooler’s mind grow!

Table of contents show

Science Experiments for Preschoolers

Science experiments for preschoolers aim to engage young children in hands-on activities that help them explore basic scientific concepts. These experiments should be fun, safe, and age-appropriate to keep their interest while fostering their curiosity and problem-solving skills. By using readily available materials and simple instructions, parents can create exciting and educational experiences for their little ones, setting a strong foundation for future learning and a love for science.

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Getting Started with Science Experiments for Preschoolers

Before diving into specific experiments, it’s essential to keep a few things in mind when selecting age-appropriate activities for your little scientist. Early childhood education experts recommend focusing on the process rather than the result, using open-ended questions, and ensuring a safe environment for exploration. Incorporating play and storytelling can also make the learning experience more engaging and enjoyable for your preschooler.

Colorful Chemistry: Primary Color Mixing


  • Three clear plastic cups
  • Water
  • Red, yellow, and blue food coloring
  • Spoons or craft sticks for stirring


  1. Set up three cups with water and add a few drops of red, yellow, or blue food coloring to each, one color per cup.
  2. Invite your preschooler to mix the primary colors together (red and yellow, yellow and blue, and blue and red) to create new colors.
  3. Encourage your child to hypothesize what the resulting colors will be and discuss their observations.

This experiment introduces preschoolers to color theory and primary colors while engaging them in a fun, hands-on activity.

Magnetic Attraction: Magnetic Treasure Hunt


  • Magnets (fridge magnets or small bar magnets)
  • Metallic and non-metallic objects (e.g., coins, paper clips, aluminum foil, and non-magnetic items)
  • Container or tray to hold the objects


  1. Place a mixture of metallic and non-metallic items in a container or on a tray.
  2. Give your preschooler a magnet and encourage them to try picking up different objects using the magnet.
  3. Discuss why some objects are attracted to the magnet while others aren’t.

This experiment teaches preschoolers about magnetism and attracts them to explore the differences between magnetic and non-magnetic materials.

Sensational Seeds: Growing Bean Sprouts


  • Dry beans (e.g., lima or kidney beans)
  • Clear plastic cups or small jars
  • Water
  • Paper towels


  1. Soak the beans in water overnight to soften them.
  2. Wet a few paper towels and line the inside of the clear cups or jars with them.
  3. Place a few soaked beans between the paper towel and the cup or jar, spacing them out so they can be easily observed.
  4. Keep the paper towels moist by adding water when needed.
  5. Check daily to observe the growth of the sprouts and discuss the process with your preschooler.

This experiment helps preschoolers understand the life cycle of plants and teaches them about germination and growth.

Float or Sink: Exploring Buoyancy


  • Various small objects (e.g., plastic toys, coins, leaves, pebbles, and foam or rubber objects)
  • Large tub or sink filled with water
  • Towel for cleanup


  1. Collect a variety of small objects that can safely be placed in water.
  2. Ask your preschooler to predict whether each object will float or sink before placing it in the water.
  3. Discuss the results and why some objects float while others sink.

Floating and sinking experiment introduces preschoolers to the concept of buoyancy, allowing them to explore the properties of different materials and make predictions.

Making Learning Fun: Learning App for Toddlers

In addition to hands-on science experiments, introducing a learning app for toddlers can help supplement your preschooler’s education with digital resources. Apps like “Endless Alphabet” or “Play and Learn Science” offer age-appropriate, interactive content designed to engage young learners and reinforce important skills. Combining digital resources with physical activities can create a balanced educational experience, allowing you to lay the groundwork for a lifelong love of learning and a passion for science.

Erupting Volcanoes: The Classic Baking Soda and Vinegar Experiment


  • Small plastic container or cup
  • Baking soda
  • Vinegar
  • Food coloring (optional)
  • Tray, baking pan, or outdoor space for easy cleanup


  1. Place the plastic container on the tray, baking pan, or in your chosen outdoor space.
  2. Fill the container halfway with baking soda.
  3. Add a few drops of food coloring to the vinegar.
  4. Pour a small amount of vinegar into the container with baking soda and watch the reaction!
  5. Discuss the bubbling and foaming reaction with your preschooler.

This classic science experiment is perfect for teaching preschoolers about chemical reactions while providing an exciting and memorable experience.

Remember, Safety First!

When conducting science experiments with your preschooler, always prioritize safety. Make sure to supervise your child during experiments and use age-appropriate materials. As parents, our role is not only to provide a stimulating and exciting learning environment but also to ensure our little ones remain safe and secure while exploring the fascinating world of science.


Early childhood education is a critical period for nurturing curiosity and a love for learning. By introducing your preschooler to intriguing and engaging science experiments, you can inspire their creativity, foster problem-solving skills, and build a solid foundation for their future educational journey.

Encouraging Scientific Thinking in Toddler Education

At the heart of every science experiment lies the development of scientific thinking skills. Toddler education should focus on fostering curiosity and inquisitiveness, as well as the ability to observe, question, and problem-solve. As parents, you can promote scientific thinking in your preschooler by incorporating these principles into your everyday activities and conversations.

Observe and Investigate

Encourage your preschooler to observe their surroundings carefully, whether they’re indoors, outdoors, or during a science experiment. Ask questions like, “What do you see?” and “What do you notice?” to stimulate their observational skills. By exploring their environment, preschoolers can gain a better understanding of the world around them and develop essential observation skills in the process.

Ask and Answer Questions

Curiosity is a hallmark of scientific thinking, and asking questions helps children develop their understanding of various concepts. Guide your preschooler to ask questions about the science experiments they’re conducting or the natural phenomena they encounter. Open-ended questions such as “What do you think will happen if…?” can also be used to engage them in thinking about cause and effect, hypothesis building, and prediction making.

Problem Solving and Critical Thinking

In every science experiment, there are challenges to overcome and problems to solve. By guiding your preschooler through the process, you can help them develop critical thinking and problem-solving skills. For example, if your preschooler notices that their bean sprouts aren’t growing well, discuss what factors could be affecting the plant’s growth and brainstorm ways to address these issues together. Supporting your child in finding solutions can boost their confidence and foster independent thinking.

Record and Review Observations

Documenting the result of science experiments can be an effective way to help your preschooler track their progress and recall what they have learned over time. Encourage your preschooler to draw pictures or make simple notations of their observations in a science journal. Regularly reviewing these records together can not only reinforce their learning but also highlight the importance of documentation and data analysis in the scientific process.

Communicating Findings

Encourage your preschooler to share their findings from science experiments with you, friends, or family members. This can help them refine their communication skills and gives them the opportunity to reflect on their learning experiences. Furthermore, engaging in conversations about their observations and answering questions can help your preschooler consolidate their understanding of the experiment and reinforce the scientific concepts they’ve learned.


Science experiments for preschoolers can offer valuable learning opportunities beyond the specific subject matter. By focusing on the development of scientific thinking skills throughout toddler education, you can lay the foundation for a lifelong passion for learning and inspire future generations of scientists, engineers, and innovators.

FAQ Section: Science Experiments for Preschoolers

This FAQ section aims to answer common questions that parents may have when introducing their preschooler to science experiments. We’ll cover topics such as essential materials, safety considerations, and much more to help you create fun and engaging learning experiences for your little one.

1. What are some simple materials I can use for science experiments at home?

Many household items can be used to create engaging preschool science experiments, such as food coloring, vinegar, baking soda, ice, water, magnets, and recycled materials like plastic bottles and cardboard boxes. Always ensure the materials used are age-appropriate and safe for your preschooler to handle.

2. How can I ensure my preschooler’s safety while conducting science experiments?

Always supervise your child during experiments, use age-appropriate and non-toxic materials, and keep small objects out of reach to prevent choking hazards. Set up a designated area for experiments to contain messes and accidents, instruct your child about the importance of not ingesting any materials, and always wash hands after handling experiment components.

3. How often should I conduct science experiments with my preschooler?

The frequency of science experiments may vary depending on your child’s interest and your schedule. Ideally, aim for one or two experiments per week to maintain engagement and support their curiosity. This also provides opportunities for reflection and revisiting previous concepts to reinforce learning.

4. How can I promote scientific thinking in my preschooler?

To encourage scientific thinking, engage your child in observation, questioning, problem-solving, and critical thinking. Pose open-ended questions, facilitate discussions about their observations and hypotheses, and provide opportunities for them to explore their environment and engage with scientific concepts.

5. What if my preschooler loses interest or gets frustrated during an experiment?

If frustration or disinterest arises, take a step back and discuss your child’s feelings. Offer support, remind them that it’s okay to make mistakes, and identify potential modifications or alternative experiments that might better capture their interest. Focus on making learning fun and enjoyable rather than pushing for perfect results.

6. Are there any books or resources I can use to find more science experiments?

Yes, several books and websites offer science experiment ideas for preschoolers, such as “The Everything Kids’ Science Experiments Book” by Tom Robinson or “Preschooler’s Busy Book” by Trish Kuffner. Online, you can check resources like Steve Spangler Science, PBS Kids, or National Geographic for Kids, which feature age-appropriate experiments and ideas.

7. How can I tie in experiment concepts with other learning at home?

Integrate science concepts into everyday activities and conversations, such as discussing weather patterns or observing nature during a walk. This practice can help reinforce the ideas learned during experiments and connect their learning experiences to the world around them.

8. How do I know if a science experiment is age-appropriate?

An age-appropriate science experiment should be simple, safe, use readily available materials, and have clear instructions. Look for activities that focus on exploration and play, and avoid those that require precise measurements, complex steps, or potentially hazardous substances.

9. Is it better to conduct science experiments indoors or outdoors?

Both indoor and outdoor settings have their benefits for conducting science experiments. Indoor experiments offer a controlled environment and can be done in any weather, while outdoor experiments may encourage exploration and observation of natural phenomena. Choose your setting based on the specific experiment, your child’s preferences, and the available resources.

10. Can siblings of different ages participate in the same science experiment?

Yes, siblings can often participate together in a science experiment. Make sure to monitor the process carefully to ensure each child is engaged safely and appropriately. Adapting the experiment to suit different age groups can also help foster collaboration and create a positive learning experience for everyone involved.

11. Can I use digital resources, like learning apps, to support hands-on science experiments?

Yes, a well-rounded approach that includes both hands-on experiments and learning apps can be beneficial. Apps such as “Endless Alphabet” or “Play and Learn Science” can supplement your child’s education with interactive content that reinforces important skills and concepts.

12. How do I engage a preschooler who is hesitant about participating in science experiments?

If your preschooler is hesitant, consider incorporating elements of play, storytelling, or familiar characters to create a more inviting experience. Experiment with various types of experiments and allow your child to choose activities that align with their interests. Patience, encouragement, and ongoing support can help foster enthusiasm for science.

13. What topics should I focus on when introducing preschoolers to science experiments?

Focus on age-appropriate topics that are relevant to your preschooler’s everyday experiences, such as plants, animals, magnets, colors, or weather. Choose experiments that allow children to explore these concepts through hands-on activities, making learning exciting and relatable.

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