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Second Grade and Fourth Grade Science Activities and Experiments

Science activities help little learners of all ages understand important concepts, and these science activities for kids give them the opportunity to discover something completely new. What's more, science activities are fun! Some, like Oobleck, are messy. Others are impressive, like the classic erupting volcano project. Whatever activity you end up trying, your child will be developing new skills as he forms predictions and makes observations. No matter where your child's interests may lie, we have a science experiment that will teach him something cool and make him smile.

For more in-depth experiments and investigations, check out our Science Fair Project Ideas section of the site.

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This simple 'how to make a water wheel' activity makes physics come alive for your child by demonstrating how different kinds of energy work.
Fourth Grade
Physical Science
Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!
Fourth Grade
Physical Science
Try this experiment to give your curious kid a more 'solid' understanding of how temperature affects the states of matter.
Second Grade
Physical Science
Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.
Fourth Grade
Life Science
Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.
Fourth Grade
Physical Science
Get those mad scientist goggles ready! This group of crazy concoctions will cover all the science basics, with style. Explore candy science, soap science and more... Suddenly science never looked so cool!
Second Grade
Physical Science
Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.
Second Grade
Life Science
Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.
Fourth Grade
Earth & Space Science
This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.
Fourth Grade
Physical Science
Help your child understand the scientific concept of evaporation with this fun outdoor science activity.
Second Grade
Physical Science
This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.
Second Grade
Life Science
Try this chemistry experiment with your curious kid and get some 'shocking' results!
Fourth Grade
Physical Science
Teach your child to dye eggs with natural ingredients from the grocery store. From pink to gold, these eggs are perfect for hiding, hunting or simply munching.
Second Grade
Life Science
You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.
Second Grade
Nature Activities
This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.
Second Grade
Plants, Animals & the Earth

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