![]() ![]() ![]() 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.Learn about simple lab techniques and how to think like a scientist while exploring unknown substances, with this exploring an unknown liquid experiment.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.Schooling A Monkey has a ketchup fish version which demonstrates one of the ways fish can rise and sink in the water. Buggy and Buddy has a cute “squidy” cartesian diver idea, and JDaniel4’s Mom shows how to make one with a LEGO man. Making your own cartesian diver is an awesome classic buoyancy science activity.Make your own pH indicator using cabbage! And then play around with natural acids and bases to make colour changing potions.Can you make a balloon-powered boat? From JDaniel4’s Mom.They’ll love that!) From What Do We Do All Day? (And then send the kids over to the grandparents house to annoy them with the noise. Learn about noise vibrations with these cool DIY spinning noise makers.A few precautions (safety goggles etc) are needed for this one, but kids should love seeing the sedimentary rocks fizzle and bubble. Or if you’re a bit more hardcore, you can try a similar experiment using hardware store supplies.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.Here’s one activity where she challenged her daughter to separate and identify two unknown substances. Planet Smarty Pants has a great series on teaching kids to think like scientists.And could double as a great prop for Halloween! From Fantastic Fun and Learning. Once they’ve mastered bones, they could move on to drawing in the organs. Create your own body-shaped chalk board, so kids can draw their skeleton.Or you could use up some of those loom bands and create constellation patterns on a geoboard.Create constellations using DIY magnetic LED lights, then turn the lights of to see them shine! From Buggy and Buddy.Here’s how to make a cool DIY Wind Anemometer (and learn what that even is), from There’s Just One Mommy.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.Which one works best? From JDaniel4’s Mom. Try these three different ways to make water wheels.Did you know you can make homemade magnetic slime? So awesome.Make (and decorate) your own inertia zoom ball – these look fun! From What Do We Do All Day.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:
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