Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 13 · 40 questions

What you do (Push back, move forward): 1. Thread the string through the straw and tie it tightly between two chairs. 2. Blow up the balloon (not too much) and pinch its neck shut. 3. Tape the balloon to the straw, neck pointing backward. 4. Let go, measure how far it goes, and keep it away from faces.

1. 1.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
2. 2.🚀 Which of these goes forward? (a) water from the oars (b) gas from the rocket (c) the rowing boat (d) water a swimmer pushes
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) False (b) True
4. 4.True or false: the rocket goes backward. (a) False (b) True
5. 5.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
6. 6.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it travels farther (c) it goes backward first (d) it speeds up
8. 8.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
9. 9.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the rocket (d) the rowing boat
10. 10.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
11. 11.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) water from the oars (d) water a swimmer pushes
12. 12.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
13. 13.True or false: water from the oars goes forward. (a) True (b) False
14. 14.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
15. 15.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the rowing boat (d) gas from the rocket
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
17. 17.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
18. 18.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
19. 19.🚀 Which of these goes backward? (a) the rowing boat (b) the balloon (c) water a swimmer pushes (d) the swimmer
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) a long string (c) sticky tape (d) a drinking straw
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a long string (d) a magnet
22. 22.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a long string (c) a magnet (d) a mirror
23. 23.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it guides the balloon (d) it blows air in
24. 24.True or false: gas from the rocket goes backward. (a) True (b) False
25. 25.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
26. 26.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
27. 27.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
28. 28.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
29. 29.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the slope of the string (c) how big we blow it (d) the same straw
32. 32.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) when it gets cold (d) it never stops
33. 33.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a long string (d) yeast
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
35. 35.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
36. 36.🚀 Which of these goes forward? (a) gas from the rocket (b) water a swimmer pushes (c) air from the balloon (d) the rocket
37. 37.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) throw them away safely (c) chew them (d) keep them in your mouth
38. 38.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) keep it away from faces (d) aim it at your friend
39. 39.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False

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