School Science Projects

Okay, so my friend and I were riding in the bed of my buddies truck, and my friend says to me that if you were to jump straight up out of the truck at say 30mph, you would land without falling.

My argument was that you would be also traveling at 30mph or something near there, so when you landed you would fall/roll/etc.

He got so defensive saying you could land and stay up because he says you aren’t moving with the truck. So please someone give me the science behind this to either:

A.) admit defeat
or
B.) blow his mind with a detailed scientific explanation to why he is wrong

thank you

Want some science experiments for class6 students.

what should happen if you put three coveredcontainers in the freezer, two filled with water, one of these has been taped and one empty container overnight? Should the filled water have blown the lid off due to the force of the expantion? That’s what I think, but it’s not working…darn kids science projects!

heard this on the radio but didn’t catch the details.
any info would be great. looking for simple science projects for kids using stuff around the house