Uh-oh! A river! We have to get across!
"But w-we don't have much time before the grizzlies catch up!!"
"I know! We can float across the river."
"Quick, everyone look for something we can float on."
Here's a flat piece of wood.
And here's a curved piece of wood.
Remember, we need something that can float us down the river. (Buoyancy)
Which do you think will float?
Oh yeah! Well. Let's test our ideas out and see what floats.
"I guess we can't use that to float across the river."
"Aha! But both pieces of wood are floating, we can get away on those!"
Let's try the flat wood first.
"Hey, w-what's goin' on here?"
Darington, you're sinking! Jump!
Hey, the curved wood is floating!
Here come the grizzlies!!
"Ha-ha! So long, grizzlies!"