When Things Collide is a free printable Grade 4 science worksheet on asking and predicting what happens to energy in a collision, aligned to Common Core standard 4-PS3-3. It prints 7 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.
Set 14 of 25 · the same problems every time you open this link.
Set 1 has all 25 in a single PDF. All 25 sets ask different questions.
When Things Collide
4-PS3-3
NameDate
Read the record, then answer the questions.
1.Read the record, then answer the questions.
When Marbles Meet
A record of one marble rolled into a still marble, from three release heights.
STRIKING MARBLE AND STRUCK MARBLE
Released from 5 cm: striker nearly stopped, struck marble rolled 6 cm
Released from 10 cm: striker stopped, struck marble rolled 13 cm
Released from 15 cm: striker stopped, struck marble rolled 21 cm
The struck marble was still before every collision.
Same two marbles, same track, same surface.
1. What would a release from 20 cm probably do?
2. What happened to the striking marble at 10 cm?
3. What happens to the struck marble as the release height rises?
4. How far did the struck marble roll after the 10 cm release?
2.Before a collision the struck marble is still. What does that mean?
A.It cannot move
B.Any movement it has afterwards came from the collision
C.It was already moving
3.The striking marble arrives faster. What happens to the struck marble?
A.Nothing changes
B.It rolls less far
C.It rolls further, because more energy was transferred
4.A collision makes a clicking sound. What does that tell you?
A.Some energy left as sound
B.The marbles gained energy
C.Sound has no energy
5.Two identical marbles collide head on and both stop. Where did the energy go?
A.It was destroyed
B.Into the table's colour
C.Into sound, heat and squashing at the moment of contact
6.A rolling marble hits a still marble and stops. What happened to its energy?
A.It disappeared
B.It was transferred to the marble it hit
C.It stayed in the first marble
7.Why keep the same track and surface for every trial?
A.So only the release height differs between trials
B.To save time
C.It does not matter
LessonPrint · 4-PS3-3 · Set 14 · free to copy for classroom use
Answer key — When Things Collide
Set 14. Prints on its own sheet.
1.1. Send the struck marble further than 21 cm. 2. It stopped. 3. It rolls further each time. 4. 13 cm.
2.Any movement it has afterwards came from the collision
3.It rolls further, because more energy was transferred
4.Some energy left as sound
5.Into sound, heat and squashing at the moment of contact
6.It was transferred to the marble it hit
7.So only the release height differs between trials
More practice for 4-PS3-3
Ask and predict what happens to energy when objects collide.
Teaching this next? When Things Collide is the 55-minute plan for it, with the misconceptions to expect.