Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 923 · 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.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the balloon (d) the rocket
2. 2.🔮 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
3. 3.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
4. 4.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
5. 5.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
6. 6.True or false: water from the oars goes forward. (a) False (b) True
7. 7.🚀 Which of these goes forward? (a) gas from the rocket (b) air from the balloon (c) the balloon (d) water from the oars
8. 8.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
9. 9.🔮 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
10. 10.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a long string (d) a battery cell
11. 11.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) two chairs (c) a long string (d) a drinking straw
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same straw
14. 14.🎈 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
15. 15.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) a balloon (d) sticky tape
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) sticky tape (c) a magnet (d) a battery cell
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) yeast (d) a long string
18. 18.True or false: gas from the rocket goes forward. (a) False (b) True
19. 19.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
20. 20.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we measure it (c) we change it
21. 21.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
22. 22.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
23. 23.True or false: the rowing boat goes backward. (a) False (b) True
24. 24.True or false: air from the balloon goes forward. (a) False (b) True
25. 25.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) forward (c) it stays still (d) backward
26. 26.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
27. 27.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
28. 28.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a balloon (c) a long string (d) vinegar
29. 29.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
30. 30.True or false: the rocket goes forward. (a) True (b) False
31. 31.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it guides the balloon (d) it holds water
32. 32.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
33. 33.⚖️ 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
34. 34.⚖️ 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
35. 35.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a magnet (b) a drinking straw (c) a balloon (d) a long string
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same tape
38. 38.⚖️ 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
39. 39.True or false: the rowing boat goes forward. (a) True (b) False
40. 40.True or false: a long string is needed for the balloon rocket. (a) False (b) True

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