Question

christian is trying to move a heavy pallet of books up 6 steps to a storage room. he tries to pick all the books but they are too heavy for him to lift. he is trying to decide what he can use to make it easier to lift the books to the storage room. which hypothesis would be best to solve his problem?

a. tie a rope to the pallet and use a pulley to lift the books.

b. if christian builds a ramp, then it will take less effort to pull the pallet into the storage room.

c. christian could use a wheel and axle to roll the pallet up each step.

d. christian should weight the pallet to see how heavy it is then get some friends to help move the books.

sam wonders if coke goes flat faster in cold

Explanation:

A hypothesis is an "if - then" statement predicting an outcome. Option B has the "if - then" structure, proposing that building a ramp (if) will reduce effort (then), which is a testable prediction for solving the lifting problem. Other options are suggestions or procedures, not hypotheses.

Answer:

B. If Christian builds a ramp, then it will take less effort to pull the pallet into the storage room.