Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 379 · 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.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
2. 2.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
3. 3.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
4. 4.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it goes less far (d) it turns into a kite
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) sticky tape (c) a balloon (d) a drinking straw
7. 7.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) the balloon (d) gas from the rocket
8. 8.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
9. 9.🚀 Which of these goes backward? (a) gas from the rocket (b) the rocket (c) the balloon (d) the swimmer
10. 10.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same string (c) how big we blow it (d) distance it travels
12. 12.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) straight down (d) backward
13. 13.True or false: the rocket goes backward. (a) False (b) True
14. 14.True or false: water from the oars goes backward. (a) True (b) False
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a drinking straw (c) sticky tape (d) a balloon
16. 16.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
18. 18.True or false: water a swimmer pushes goes backward. (a) False (b) True
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same string (c) the same straw (d) how big we blow it
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) yeast (c) sticky tape (d) a drinking straw
21. 21.⚖️ 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
22. 22.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
24. 24.🚀 Which of these goes backward? (a) the rocket (b) water a swimmer pushes (c) the swimmer (d) the balloon
25. 25.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
26. 26.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
27. 27.True or false: air from the balloon goes forward. (a) True (b) False
28. 28.True or false: the rowing boat goes forward. (a) True (b) False
29. 29.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
30. 30.🛟 What should you do with popped balloon pieces? (a) chew them (b) throw them away safely (c) keep them in your mouth (d) give them to a baby
31. 31.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) two chairs (c) turmeric powder (d) a mirror
32. 32.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
33. 33.True or false: vinegar is not needed for the balloon rocket. (a) True (b) False
34. 34.True or false: a long string is needed for the balloon rocket. (a) False (b) True
35. 35.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) a mirror
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) turmeric powder (c) a long string (d) a drinking straw
37. 37.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
38. 38.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) water from the oars (d) the swimmer
39. 39.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a long string (c) sticky tape (d) a drinking straw
40. 40.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend

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