Mark made CrunchLabs.
It has kits for kids.
Mark did a job at NASA.
Look at Mark go!
Mark made a Jell-O pool.
Look at Mark go, go!
Look at Mark go, go, go!
Mark wants kids to love science.
Facts
Real facts about everything, written for your grade.
Mark Rober: Who is Mark Rober?
Mark made CrunchLabs.
It has kits for kids.
Mark did a job at NASA.
Look at Mark go!
Mark made a Jell-O pool.
Look at Mark go, go!
Look at Mark go, go, go!
Mark wants kids to love science.
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