7-9 Year Olds

Fun Science & STEM Activities for 7-9 Year Olds

Want even MORE science fun?

Here are some cool science activities, that I’ve found from around the web that I think would be perfect for the 7-9 year old age group:

• Make (and decorate) your own inertia zoom ball – these look fun! From What Do We Do All Day.
• Did you know you can make homemade magnetic slime? So awesome. From Frugal Fun for Boys and Girls.
• Try these three different ways to make water wheels. Which one works best? From JDaniel4’s Mom.
• Make a hurricane in a bottle, or more precisely, in two bottles! These kids did this activity as part of an astronomy lesson on the eye of Jupiter (cool!), but you could also do it as an (earth) weather lesson. From My Joy Filled Life.
• Here’s how to make a cool DIY Wind Anemometer (and learn what that even is), from There’s Just One Mommy.
• Create constellations using DIY magnetic LED lights, then turn the lights of to see them shine! From Buggy and Buddy.
• Or you could use up some of those loom bands and create constellation patterns on a geoboard. From School Time Snippets.
• Create your own body-shaped chalk board, so kids can draw their skeleton. Once they’ve mastered bones, they could move on to drawing in the organs. And could double as a great prop for Halloween! From Fantastic Fun and Learning.
• Planet Smarty Pants has a great series on teaching kids to think like scientists. Here’s one activity where she challenged her daughter to separate and identify two unknown substances.
• Learn about geology, and more specifically, how to test if a found rock is limestone using just everyday materials you’ll already have at home. From KC Edventures.
• Or if you’re a bit more hardcore, you can try a similar experiment using hardware store supplies. A few precautions (safety goggles etc) are needed for this one, but kids should love seeing the sedimentary rocks fizzle and bubble. From Preschool Powol Packets.
• Learn about noise vibrations with these cool DIY spinning noise makers. (And then send the kids over to the grandparents house to annoy them with the noise. They’ll love that!) From What Do We Do All Day?
• Can you make a balloon-powered boat? From JDaniel4’s Mom.
• Make your own pH indicator using cabbage! And then play around with natural acids and bases to make colour changing potions. So much fun! From What Do We Do All Day?
• Making your own cartesian diver is an awesome classic buoyancy science activity. Buggy and Buddy has a cute “squidy” cartesian diver idea, and JDaniel4’s Mom shows how to make one with a LEGO man. Schooling A Monkey has a ketchup fish version which demonstrates one of the ways fish can rise and sink in the water.
• Can you design and build shelters to protect UV-sensitive animals from the sun? Afterwards, you can test how effective your designs are, with UV-sensitive beads! From Buggy and Buddy.
• Learn about simple lab techniques and how to think like a scientist while exploring unknown substances, with this exploring an unknown liquid experiment. From Planet Smarty Pants.
• Have you tried making Borax crystals yet? It’s a popular science experiment or demonstration for this age group, because it’s always really impressive! You’ve probably seen a few of our own crystal science activities above. One Creative Mommy made letter and spiral crystals and Little Bins for Little Hands has a cool crystal bouquet of flowers version.
• NurtureStore shows how to make beautiful crystals using alum. These look like diamonds. 🙂
• The Coke & Mentos explosion is classic science that’s always impressive. Lemon Lime Adventures shows three ways to try it.
• Make your own thermometer! (No mercury required). From What Do We Do All Day?
• If you’re looking for an outdoor science activity, this DIY PVC pipe rocket launcher looks like it would be a ‘blast’. Lol. From Preschool Powol Packets.
• Are your kids crafty? Encourage them to learn about electronics and circuits, while creating super cute ‘make a wish’ light up birthday card for a friend. From Artsy Momma.
• Can you make an igloo? Science, engineering, fine motor skills, and patience are required for this one! From Preschool Powol Packets.
• What is the best DIY fertiliser? This would be a great activity for spring. From Planet Smarty Pants.
• Speaking of spring, KC Edventures has a fascinating post about exploring the anatomy of a flower. NurtureStore has a similar post about dissecting daffodils. I can’t wait to try this in the spring!
• And here’s a fun physics lesson for summer out in the backyard. Can you make an empty soft drink (soda) can twist without touching it? From Kids Minds.
• NurtureStore shows how you can incorporate kitchen potion making with chemistry and the periodic table. Fun!

Want even, EVEN more?

There are plenty of activities and ideas in the same section of our Fun Science for 5-6 Year Olds page – many of these activities would be appropriate for 7-9 year olds as well. Often there are usually extension ideas to make them more challenging if need be, and you could always adapt the activities yourself as well, by encouraging kids to follow the scientific method, hypothesize, plan and set up the activities for themselves, experiment with changing one variable at a time, document the process, etc.