Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 320 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) yeast (d) sticky tape
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) a magnet
3. 3.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) a magnet (c) turmeric powder (d) a battery cell
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) a balloon (d) sticky tape
5. 5.True or false: the rowing boat goes forward. (a) False (b) True
6. 6.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
7. 7.⚖️ 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 string
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
9. 9.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
10. 10.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
11. 11.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a magnet (c) a drinking straw (d) a battery cell
12. 12.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
13. 13.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
14. 14.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same string
16. 16.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it speeds up (d) it travels less far
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a mirror (d) a sundial
18. 18.🚀 Which of these goes backward? (a) the balloon (b) water from the oars (c) the rowing boat (d) the rocket
19. 19.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a balloon (c) a drinking straw (d) a battery cell
21. 21.True or false: the rocket goes backward. (a) False (b) True
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same straw (c) how big we blow it
23. 23.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
24. 24.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
25. 25.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
26. 26.🎈 When does the balloon rocket stop? (a) when the air runs out (b) when it turns blue (c) it never stops (d) when it gets cold
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) backward (c) forward (d) it stays still
28. 28.🚀 Which of these goes forward? (a) air from the balloon (b) the swimmer (c) water from the oars (d) gas from the rocket
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) two chairs (d) a battery cell
30. 30.True or false: gas from the rocket goes forward. (a) False (b) True
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) False (b) True
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) two chairs (c) a long string (d) vinegar
33. 33.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
34. 34.True or false: the swimmer goes backward. (a) True (b) False
35. 35.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water a swimmer pushes (d) water from the oars
36. 36.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a balloon (d) vinegar
38. 38.True or false: the swimmer goes forward. (a) True (b) False
39. 39.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the rowing boat (d) gas from the rocket
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we change it (c) we keep it the same

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