Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 41 · 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.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
3. 3.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) throw them away safely (d) chew them
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
5. 5.🚀 Which of these goes forward? (a) the rowing boat (b) gas from the rocket (c) air from the balloon (d) water a swimmer pushes
6. 6.⚖️ 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
7. 7.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
8. 8.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
9. 9.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
10. 10.⚖️ 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
11. 11.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
12. 12.True or false: water from the oars goes backward. (a) False (b) True
13. 13.🔮 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
14. 14.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) no change at all (d) more friction, less far
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a drinking straw (c) a long string (d) yeast
16. 16.True or false: the balloon goes forward. (a) False (b) True
17. 17.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
18. 18.True or false: the rocket goes forward. (a) True (b) False
19. 19.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
20. 20.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) a balloon (d) sticky tape
22. 22.🧺 Which of these is needed for the balloon rocket? (a) sticky tape (b) vinegar (c) a battery cell (d) turmeric powder
23. 23.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
24. 24.⚖️ 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
25. 25.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) water from the oars (d) the swimmer
26. 26.True or false: the swimmer goes backward. (a) True (b) False
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a long string (c) turmeric powder (d) two chairs
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) two chairs (d) a balloon
29. 29.True or false: the balloon goes backward. (a) False (b) True
30. 30.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
31. 31.⚖️ 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
32. 32.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it can pop loudly (c) it changes colour (d) it turns into a kite
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) True (b) False
35. 35.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
36. 36.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is what we measure. (a) True (b) False
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
39. 39.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a balloon rocket (d) a mirror
40. 40.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed

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