A DIY Science Fair Project: Inside an Asetroid

Disclosure:  I am a member of the FloraCraft® Make It Fun team.  I received compensation and product for this post.  All ideas and opinions are 100% my own.

It is science fair season! While that is not something we are currently tackling with my 7 year old, it doesn’t mean it isn’t a great excuse for a DIY project! I even let my preschool children get in on this project and I love the way it came out! I thought it would be fun to make a model of an asteroid so we went with a model of the Ceres asteroid as it was the first one to be discovered and big enough that they thought it might be a planet at first. Check it out!

inside an astroid

Materials:

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To start, I wanted to make a cut out section so you could see inside the asteroid. I cut about a sixth of the foam ball away and also took a small piece off the bottom so it would sit flat.

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Next I made the craters, I have metal measuring spoons that worked great for this and I had a number of sizes that I was able to use to make different sized craters. A melon-baller would also work great for this if your measuring spoons won’t do the job.

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Once you have the basic shape and divots, it is time to paper mache! I knew the kids would love this process so I brought it to work to get their help. Instead of newspaper, I used the packing paper that came in the box from FloraCraft this month and it worked perfectly. The glue to water ratio is about 1:1 and I simply dipped each strip in the glue and water and then smoothed it on the surface of the ball. For the holes, I made smaller pieces and made sure they were very pliable to form to the divot.

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After the ball was completely covered, we let it dry outside in the sun.

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Next came painting which the kids also got to do with a small piece of cut sponge. I mixed a few different shades of gray with the black and white paint and we dabbed away until the outside was completely covered.

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I did the inside with my daughter’s help when I got home and I wanted the rocky inner core to be a thicker paint so I put some of the FloraCraft Diamond Dust in the brown paint to make a coarser texture. It worked great!

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As for the water and ice layer, we painted on the light blue paint or you could mix your blue with white paint to get the right color. I am sure you could have probably figured that one out, just call me Mrs. States-the-Obvious.

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While the paint was still wet, I quickly sprinkled Diamond Dust on top to get a shimmery, icy look.

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Once it all dries, you are done! It looks pretty cool and is a great 3D representation of the Ceres Asteroid. The best part? This is easy enough for a bigger kid to do on their own, that is if you are the type of parent that can let go of control a bit (I have a super hard time with that one).

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What was your favorite science fair project? Let me know in the comments below!

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