Question
We wonder…
Will it take less effort to roll the ping-pong ball on the table, on the paper towel runway or in the lentil bucket?
Hypothesis
We think…
We think it will take less effort to roll the ball on the table because the paper towels and lentils are rough and the table is smooth so it will go faster on the table. It will be more friction when we roll the ball on the paper towel runway and in the lentil bucket so it will slow the ball down.
Observations
We saw…
“In the lentil bucket, the ball didn’t even roll. It’s very hard, it’s everywhere and it’s not smooth.” Odin
“I saw that in the lentil bucket when I threw the ball, it didn’t go. It just stopped because there’s so many and it’s bumpy.” Shayanel
“In the lentil bucket, there was friction because the lentil was kind of like a mountain going up and down. It’s very rough, not stuck together or straight so it couldn’t go fast.” Rusmiya
“I noticed that the ball didn’t go very fast on the paper towel runway and sometimes it came off because it was bumpy.” Noah
“When I was throwing the ball on the paper towel it slowed down because the paper towel was going up like a hill.” Ayman
“When it was on the table, there wasn’t any friction and it was nice and smooth and fast.” Nyasha
“When I did it on the table it was easier and faster because it was smooth.” Erin
“When it was in the lentil box, it was so hard to roll. I had to throw it to get it to move. There was so much friction!” Lydia
“The lentil box was really hard because it was bumpy and there were small seeds. The edges made it harder to go above it.” Rabia
Conclusion
We think this means…
We think this means that friction makes things go slow and when you use a smooth surface it rolls fast, even if you’re using less effort. Friction makes you use more effort.
We wonder…
Will it take less effort to roll the ping-pong ball on the table, on the paper towel runway or in the lentil bucket?
Hypothesis
We think…
We think it will take less effort to roll the ball on the table because the paper towels and lentils are rough and the table is smooth so it will go faster on the table. It will be more friction when we roll the ball on the paper towel runway and in the lentil bucket so it will slow the ball down.
Observations
We saw…
“In the lentil bucket, the ball didn’t even roll. It’s very hard, it’s everywhere and it’s not smooth.” Odin
“I saw that in the lentil bucket when I threw the ball, it didn’t go. It just stopped because there’s so many and it’s bumpy.” Shayanel
“In the lentil bucket, there was friction because the lentil was kind of like a mountain going up and down. It’s very rough, not stuck together or straight so it couldn’t go fast.” Rusmiya
“I noticed that the ball didn’t go very fast on the paper towel runway and sometimes it came off because it was bumpy.” Noah
“When I was throwing the ball on the paper towel it slowed down because the paper towel was going up like a hill.” Ayman
“When it was on the table, there wasn’t any friction and it was nice and smooth and fast.” Nyasha
“When I did it on the table it was easier and faster because it was smooth.” Erin
“When it was in the lentil box, it was so hard to roll. I had to throw it to get it to move. There was so much friction!” Lydia
“The lentil box was really hard because it was bumpy and there were small seeds. The edges made it harder to go above it.” Rabia
Conclusion
We think this means…
We think this means that friction makes things go slow and when you use a smooth surface it rolls fast, even if you’re using less effort. Friction makes you use more effort.
RSS Feed