Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 159 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it flies off the string (d) it turns into a kite
2. 2.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a battery cell (c) a mirror (d) turmeric powder
3. 3.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) forward (d) it stays still
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) vinegar (d) a drinking straw
6. 6.🚀 Which of these goes forward? (a) water a swimmer pushes (b) air from the balloon (c) the rocket (d) water from the oars
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
8. 8.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
9. 9.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a balloon (c) a long string (d) two chairs
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same tape
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we measure it (c) we keep it the same
12. 12.True or false: water from the oars goes forward. (a) True (b) False
13. 13.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is the one thing we change. (a) False (b) True
15. 15.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
16. 16.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a balloon rocket (c) a sundial (d) a fridge magnet
18. 18.True or false: air from the balloon goes backward. (a) False (b) True
19. 19.🛟 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
20. 20.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
21. 21.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
22. 22.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) a long string (d) turmeric powder
24. 24.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
25. 25.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a magnet (c) vinegar (d) a drinking straw
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) a balloon (c) two chairs (d) sticky tape
29. 29.⚖️ 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 straw (c) how big we blow it (d) the same tape
30. 30.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
31. 31.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
32. 32.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
33. 33.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) how big we blow it (b) distance it travels (c) the same straw
35. 35.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a long string (c) a battery cell (d) turmeric powder
36. 36.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
37. 37.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
38. 38.⚖️ 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
39. 39.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it travels farther (d) it goes backward first
40. 40.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) water from the oars (d) water a swimmer pushes

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