Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 823 · 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.🧺 Do we need a magnet for the balloon rocket? (a) not needed (b) needed
2. 2.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the slope of the string (c) the same tape (d) distance it travels
4. 4.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the swimmer
5. 5.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) throw them away safely (c) chew them (d) give them to a baby
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a balloon (c) two chairs (d) turmeric powder
7. 7.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
8. 8.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it turns into a kite (d) it goes much farther
9. 9.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
11. 11.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a magnet (d) two chairs
12. 12.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) it stays still (d) backward
13. 13.⚖️ 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
14. 14.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
15. 15.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a drinking straw (c) yeast (d) a magnet
16. 16.🚀 Which of these goes forward? (a) gas from the rocket (b) the balloon (c) water from the oars (d) air from the balloon
17. 17.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) when the air runs out (d) it never stops
18. 18.🛟 Which is a safe rule for the balloon rocket? (a) keep it away from faces (b) put string round a neck (c) aim it at your friend (d) blow it till it bursts
19. 19.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
20. 20.True or false: the swimmer goes backward. (a) True (b) False
21. 21.🚀 Which of these goes backward? (a) air from the balloon (b) the swimmer (c) the balloon (d) the rocket
22. 22.🧺 Do we need a battery cell for the balloon rocket? (a) not needed (b) needed
23. 23.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a mirror (c) a magnet (d) turmeric powder
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) how big we blow it (c) distance it travels
25. 25.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
28. 28.True or false: the rowing boat goes forward. (a) True (b) False
29. 29.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it turns into a kite (c) it can pop loudly (d) it changes colour
30. 30.True or false: the swimmer goes forward. (a) True (b) False
31. 31.🚀 Which of these goes forward? (a) the rowing boat (b) water a swimmer pushes (c) air from the balloon (d) water from the oars
32. 32.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
33. 33.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
34. 34.True or false: the rocket goes backward. (a) False (b) True
35. 35.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a sundial (c) a fridge magnet (d) a mirror
36. 36.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) True (b) False
38. 38.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
39. 39.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
40. 40.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the swimmer (d) water from the oars

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