Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 993 · 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.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) straight down (c) forward (d) backward
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
3. 3.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it flies off the string (c) it goes much farther (d) it turns into a kite
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a drinking straw (c) two chairs (d) turmeric powder
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) the slope of the string (c) the same string (d) distance it travels
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) blow it till it bursts (c) aim it at your friend (d) keep it away from faces
7. 7.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
8. 8.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) a balloon (d) two chairs
9. 9.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) yeast (d) a long string
11. 11.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it gets too heavy (c) it can pop loudly (d) it turns into a kite
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it speeds up (c) it travels farther (d) it travels less far
13. 13.True or false: a magnet is not needed for the balloon rocket. (a) True (b) False
14. 14.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) False (b) True
16. 16.True or false: the swimmer goes forward. (a) False (b) True
17. 17.True or false: air from the balloon goes backward. (a) True (b) False
18. 18.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) two chairs (c) a magnet (d) a mirror
19. 19.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the swimmer (d) air from the balloon
20. 20.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) yeast (c) a balloon (d) a battery cell
21. 21.True or false: the rowing boat goes backward. (a) False (b) True
22. 22.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
23. 23.True or false: the rocket goes backward. (a) False (b) True
24. 24.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
25. 25.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we change it (c) we measure it
26. 26.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) water from the oars (d) the rowing boat
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) False (b) True
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we measure it (b) we keep it the same (c) we change it
29. 29.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
30. 30.🚀 Which of these goes backward? (a) gas from the rocket (b) the rowing boat (c) the swimmer (d) the balloon
31. 31.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a sundial (d) a balloon rocket
32. 32.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
33. 33.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
34. 34.True or false: turmeric powder is needed for the balloon rocket. (a) True (b) False
35. 35.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
36. 36.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) a drinking straw (d) a battery cell
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) yeast (c) a balloon (d) a drinking straw
38. 38.⚖️ 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 straw
39. 39.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) more friction, less far (b) it goes faster (c) no change at all (d) less friction
40. 40.⚖️ 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

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