The sled with a rough metal bottom would take more force to move over ice, because the rough surface would increase friction and the force needed.
Answer:He or she is looking for a difference in the two objects
Explanation:
A hypothesis Is when someone thinks of the answer and a theory is when a group of people think of an answer
Answer:
The pain nerves in her hand go to the brain to notify it. The brain processes this information and decides to tell the hand to remove itself from the stove. Then, the brain sends this signal back to the hand to make it remove tself from the stove.
Explanation:
There is approx 4.7-5.5 liters of blood in his or her vascular system.
