Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 914 · 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: the string slopes uphill. What happens? (a) it travels farther (b) it travels less far (c) it goes backward first (d) it speeds up
2. 2.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it gets too heavy (d) it changes colour
3. 3.⚖️ 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
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
5. 5.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) gas from the rocket
6. 6.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
7. 7.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it turns into a kite (d) it goes less far
8. 8.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) yeast (d) two chairs
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) True (b) False
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a battery cell (d) a mirror
12. 12.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water from the oars (d) water a swimmer pushes
13. 13.⚖️ 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
14. 14.⚖️ 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 measure it (c) we change it
15. 15.🛟 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
16. 16.⚖️ 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 string
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 fridge magnet (d) a sundial
18. 18.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when the air runs out (d) when it turns blue
19. 19.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a magnet (d) sticky tape
21. 21.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
22. 22.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) vinegar (d) a drinking straw
23. 23.⚖️ 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) the same straw (d) distance it travels
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) False (b) True
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) the straw is heavy (c) a magnet pulls it (d) the string pulls it
27. 27.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a magnet (c) a long string (d) a drinking straw
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) sticky tape (c) a balloon (d) a drinking straw
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a battery cell (b) sticky tape (c) two chairs (d) a drinking straw
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
31. 31.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) two chairs (c) a balloon (d) a long string
33. 33.True or false: air from the balloon goes backward. (a) False (b) True
34. 34.True or false: the balloon goes backward. (a) False (b) True
35. 35.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) two chairs (c) a battery cell (d) a balloon
37. 37.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
38. 38.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
39. 39.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same string (b) distance it travels (c) the slope of the string (d) how big we blow it

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