In focus: Scientific thinking and curiosity
Scientific thinking helps children ask questions, make predictions and test ideas through observation. In a future shaped by AI, the ability to think critically about how things work and to test assumptions becomes increasingly valuable. Children who learn to explore cause and effect will be better equipped to understand and question the world around them.
Parent primer
This activity is about exploring, not getting the “right” result. Your child may make guesses that seem incorrect or change their mind along the way, and that is exactly what you want. Try not to correct too quickly or jump to explanations. Your role is to encourage predictions, notice what happens and stay curious together.
All you’ll need
Simple household items such as water cups, spoons, paper or small objects. If you're looking for a ready-to-go kit with plenty of ideas, this set works well.
How it works
- Choose a simple question together, such as what sinks or floats.
- Ask your child to make a prediction before testing.
- Set up the materials needed for the test.
- Carry out the experiment together.
- Observe what happens closely.
- Ask if the result matched their prediction.
- Talk about why it might have happened.
- Change one element and test again.
- Compare results and notice differences.
Experiment ideas
Egg floating in fresh vs. salt water
Paper towel strength wet vs. dry
Big vs. small ramp speed for toy cars
Plant growth in light vs. dark position
Sugar in warm vs. cold water
What to notice
Your child making predictions before testing.
Your child adjusting their thinking after seeing results.
Curiosity about why something worked or did not.
Repeated testing with small changes.
Extend the play
Try a different question using the same materials.
Let your child design their own simple experiment.
Change one variable at a time to compare results.
Revisit the same experiment on another day and test new ideas.
Age modifiers
Ages 3-4: Focus on simple observations like sink or float and keep explanations short.
Ages 5-6: Encourage making a guess before testing and talking about what happened.
Ages 7-8: Ask why they think the result occurred and what could change it.
Ages 9-10: Introduce the idea of testing one variable at a time.
Ages 11-12: Discuss patterns across multiple tests and how to design a fair experiment.
Reflections for parents
You may feel the urge to explain the “correct” answer quickly, especially if you know the science behind it. This activity invites you to hold back and let your child discover patterns through experience. That process builds deeper understanding than explanation alone.
Why this works
Hands-on experimentation strengthens reasoning by linking prediction, observation and revision in a clear feedback loop. Research shows that inquiry-based learning improves critical thinking when children actively test ideas rather than receive answers.
Bonawitz, E., Shafto, P., Gweon, H., et al. (2011). The double-edged sword of pedagogy. Cognition, 120(3), 322–330.
Final takeaway
When children learn to test ideas and adjust their thinking they build confidence in understanding how the world works. That mindset supports curiosity critical thinking and lifelong learning.