Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 833 · 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.True or false: a long string is needed for the balloon rocket. (a) False (b) True
2. 2.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
3. 3.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) less friction (c) more friction, less far (d) it goes faster
4. 4.True or false: water a swimmer pushes goes forward. (a) True (b) False
5. 5.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) gas from the rocket (d) the balloon
6. 6.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
7. 7.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is the one thing we change. (a) True (b) False
9. 9.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
10. 10.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) air from the balloon (d) the swimmer
11. 11.🛟 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
12. 12.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
13. 13.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the balloon rocket? (a) yeast (b) a drinking straw (c) sticky tape (d) a long string
16. 16.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) the rowing boat (d) water from the oars
17. 17.⚖️ 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
18. 18.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
19. 19.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
21. 21.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) a balloon (d) a battery cell
22. 22.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it travels less far (d) it goes backward first
25. 25.⚖️ 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 string (d) the same straw
26. 26.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
27. 27.🚀 Which of these goes backward? (a) the swimmer (b) the rocket (c) the rowing boat (d) gas from the rocket
28. 28.📘 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
29. 29.⚖️ 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
30. 30.⚖️ 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
31. 31.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
32. 32.⚖️ 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
33. 33.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
36. 36.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
37. 37.True or false: the swimmer goes forward. (a) True (b) False
38. 38.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
39. 39.⚖️ 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 tape
40. 40.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) yeast (d) sticky tape

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