Choose between "picket fence" and "tree branch". Question: A squirrel runs along a long tree branch. It ends at the top of a picket fence. The squirrel uses the same amount of energy but runs slower across the picket fence. Does this happen because (A) the tree has more ridges or (B) the picket fence has more ridges?
tree branch

Choose between "steak" and "paper". Question: A piece of steak if thicker then a piece of paper. Which object is harder to rip in half? (A) steak (B) paper
steak

Q: Choose between "pavement" and "tracks". Question: John discovered that his train moved much slower on pavement then when it was placed onto some train tracks. The train generated more heat on (A) tracks (B) pavement
A: tracks

Question: Choose between "windy sky" and "calm sky". Question: A windy sky is much more rough then a calm sky. This means that an umbrella cruising through a _____ will heat up more (A) windy sky (B) calm sky
Answer: windy sky

*Question*
Choose between "sidewalk" and "dirt path". Question: Miles plays with a bouncy ball on a dirt path and then on a sidewalk. The bouncy ball bounces much higher on the sidewalk than it does on the dirt path. The bouncy ball bounces higher on the sidewalk because the sidewalk has _____ than the dirt path. (A) more resistance (B) less resistance
**Answer**
dirt path

Choose between "napkin" and "table". Question: Hank's salt shaker rolled more slowly over his napkin than over the table. He then surmised that the _____ was rougher (A) napkin (B) table
napkin