Try the challenge with different objects like styrofoam balls or gumdrops.Improve the catapult and try launching the cotton balls and marshmallows again to see if the design made a difference.Discuss with your kids why they think the cotton ball or the marshmallow went farther.Youll need to wrap the rubber band around several times to make it nice and tight. The bottom of the spoon should line up wth the edge of the stick. You will be surprised at the different ways they build their catapults!Īfter your kids finished the 3 trials with the cotton balls and marshmallows, you can have them: Stack 4 sticks, then glue the spoon in the center of the top stick. Follow the worksheet to record if the marshmallow or cotton ball went further!įor older kids, you can make the challenge harder by giving them popsicle sticks, spoons, and rubber bands and have them figure out how to build the catapult. Press down on the spoon gently while holding the bottom of the catapult with your other hand.ĩ. Hello Today I will show you how to make 2 catapults out of popsicle sticks and rubber bandsFollow me Instagram. Pull apart the 2 popsicle sticks and wedge the stack of 7 between those 2.Ħ. Stack the popsicle stick with the spoon and another popsicle stick and tie one end with a rubber band.Ĥ. Use 2 rubber bands to secure the plastic spoon to a popsicle stick.ģ. For step 5, just hot glue the rubber band in 2 of the small clothespins. Stack 7 popsicle sticks and tie ends with rubber bands.Ģ. For step 4, you just need to hot glue the small dowels on one of the large popsicle sticks, as shown in the picture. Free printable snowball fight challenge worksheetġ.When you think of winter, what is the first thing that pops into your head? White, fluffy snow! And what do you do with snow when you are a kid? Have a snowball fight!įor this winter STEM challenge, the kids will go through the scientific method and find out which object will go farther when you launch different items using a popsicle stick catapult! Snowball Fight Winter STEM Challenge Materials: Using a simple catapult design made out of popsicle sticks and a plastic spoon, your kids can determine who will win a snowball fight if one uses marshmallows and the other cotton balls.
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