Big Brother had his first science fair this past week! He is still very interested in learning about outer space, so he chose (with a little direction) to do his science fair project answering the question, “Why are there craters on the moon?”
We created this poster detailing a simplified version of the scientific process.
We even made a “puffy moon” using shaving cream and glue!
Finally, we completed a simple experiment to illustrate the impact of a crater. This post was inspired by this idea from Fumbling through Parenthood. Instead of using the “moon sand”, I found that “cloud dough” held the shape of the “meteors” much more effectively.
Here is what you’ll need for this demonstration:
4 cups of flour
1/2 cup of baby oil
small pebbles or rocks
Round cake pan
(Don’t mind the specks of black in our “moon dough”. I attempted to color it using black liquid watercolor. Obviously, it didn’t work.) :)
Have your child(ren) drop the pebbles onto the pan.
Observe the “craters” left by the pebbles.
We also talked about how the moon is more susceptible to craters from space rocks than Earth. Earth’s atmosphere will burn most meteorites and asteroids before they come in contact with Earth’s surface. The moon, however, does not have an atmosphere to protect it!
The Moon by Seymour Simon
What is your favorite science fair experiment???
JDaniel4's Mom says
May 1, 2014 at 5:18 amThis is the perfect way to wrap a child’s brain around this concept.
Leann Pines says
July 18, 2014 at 2:38 pmThis is a great activity! Although terminology-wise, a meteoroid is a rock in space, a meteor is a rock entering the atmosphere, and a meteorite is a rock found on Earth’s surface.
Eden says
November 30, 2014 at 6:02 amThanks!
Deceptively Educational says
November 21, 2014 at 4:32 pmI’m posting a round-up of moon-related activities on my blog this Monday (11/24). I’d like to get your permission to include the photo with your link. Thanks!
Megan Passey says
January 27, 2016 at 2:28 pmDo you know if other types of oil could be used? I don’t have any baby oil on hand and would rather not go out to buy some if it can be helped.
Jenae says
January 27, 2016 at 3:42 pmYou could try using melted coconut oil or even vegetable oil. I’m not sure the results would be identical but probably close enough! :) Let us know if you try it.
Magda says
February 17, 2018 at 1:32 amIt does not explain what the Oil is for? could you please tell me? do I mix it with the the flour and then put it in the cake pan? or do I drop, drops into the flour like the pebbles?
Thank you
Jasmin says
February 4, 2016 at 6:54 pmDid you put this in the oven at all?? Mine doesn’t look like the picture you posted =(
Jenae says
February 4, 2016 at 9:48 pmNo, but in the post you will see that I tried to add food coloring to it and it didn’t work…which is why it was speckled. :) If you want to dye it you will have to use an oil-based food dye.
Scott says
February 7, 2016 at 8:17 amHey Jenae,
What did you use for the white writing on the black tri-fold? Paint pen? Thanks!
Jenae says
February 8, 2016 at 12:29 pmYes, just a white paint pen. :)
Morgan says
February 11, 2016 at 10:42 amHow did you get the moon to stick to the board?
Yo mamma says
February 11, 2016 at 3:35 pmShe probably used glue. T-T
Yo mamma says
February 11, 2016 at 3:38 pmIt is maybe cut through the cardboard and glued.
Mike Smithwick says
September 11, 2017 at 12:29 pmI teach a bunch of 5th graders astronomy lessons once a month and this is what I do on the second or third lesson. To make it a little more interesting I sprinkle some powdered chocolate over the flour so the larger impactors will make rays like Tycho. Plus this is just the fun and messy lessons anyone has got to enjoy