Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 571 · 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.⚖️ 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
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
3. 3.🛟 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
4. 4.⚖️ 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
5. 5.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) straight down (c) backward (d) it stays still
6. 6.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
7. 7.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) give them to a baby (c) chew them (d) keep them in your mouth
8. 8.⚖️ 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) True (b) False
9. 9.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
10. 10.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
11. 11.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
12. 12.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
13. 13.True or false: the rocket goes backward. (a) False (b) True
14. 14.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) False (b) True
15. 15.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
16. 16.⚖️ 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 keep it the same (c) we measure it
17. 17.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
18. 18.🧺 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) yeast
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
20. 20.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
21. 21.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it flies off the string (d) it goes less far
22. 22.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) a mirror (c) turmeric powder (d) a magnet
23. 23.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
24. 24.True or false: the rocket goes forward. (a) False (b) True
25. 25.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
26. 26.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a long string (c) a drinking straw (d) vinegar
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) distance it travels (c) the same tape (d) the same string
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) a balloon (d) a magnet
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the slope of the string (c) the same tape (d) the same straw
31. 31.True or false: the swimmer goes backward. (a) False (b) True
32. 32.True or false: a long string is needed for the balloon rocket. (a) False (b) True
33. 33.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
34. 34.True or false: air from the balloon goes backward. (a) False (b) True
35. 35.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
36. 36.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) put string round a neck (d) keep it away from faces
37. 37.True or false: water a swimmer pushes goes backward. (a) False (b) True
38. 38.True or false: yeast is needed for the balloon rocket. (a) True (b) False
39. 39.🚀 Which of these goes forward? (a) the balloon (b) gas from the rocket (c) air from the balloon (d) water a swimmer pushes
40. 40.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a long string (d) yeast

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