PUSH OR PULL
YOU PRESS A DOOR TO CLOSE IT.
PUSH
A force is a ____ or a ______.
push or a pull
When an object stops moving, this shows that a ___ has acted on it.
force
Scientists pay attention to ___ because it helps them understand how things work.
change
YOU USE THIS TO MOVE A WAGON TOWARDS YOU.
PULL
This word means information that helps explain something or answers a question.
evidence
A soccer ball sits on the grass and does not move until someone kicks it. The ball starting to move is evidence that a ___ happened.
True or False: Scientists only gather information by doing experiments; they never use books.
false
WHEN TWO OBJECTS MOVE FARTHER APART BECAUSE OF A FORCE BETWEEN THEM, THAT FORCE IS CALLED A ______.
PUSH
When scientists look carefully to gather information with their eyes or tools, they are making ______.
observations
If a toy car is rolling and then slows down and stops, what does that tell you about forces acting on it?
A force (like friction or a push/pull) acted on it to change its motion.)
A force acts between ___ objects.
two objects
YOU PULL A CUP TOWARD YOU WITH YOUR HAND. DESCRIBE WHETHER THE OBJECTS MOVE CLOSER TOGETHER OR IN THE SAME DIRECTION.
They move closer together.
Name two ways scientists gather information.
Describe one example where an object starts moving because of a pull.
A dog pulls its leash.
Name one reason scientists pay attention to change.
To figure out how and why something changes or how something works.
Give an example of a pull and explain how it acts between two objects in one sentence.
A pull makes things get closer. Pulling a wagon.
Explain in one sentence why evidence is important to scientists.
Evidence helps scientists explain how or why something happens and answers their questions.
Explain why a change in motion (start or stop) is useful evidence for scientists studying forces.
Changes in motion show that a force acted, helping scientists figure out what caused the change.
Write a short explanation (1–2 sentences) of how observations and evidence work together when scientists study forces.
Observations give information about what happens, and evidence collected from those observations (and books) helps scientists explain why objects start, stop, or change motion.