Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 929 · 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) backward (b) forward (c) straight down (d) it stays still
2. 2.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
4. 4.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the rocket (d) the rowing boat
5. 5.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) turmeric powder (d) a long string
7. 7.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) a battery cell (d) sticky tape
9. 9.⚖️ 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
10. 10.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) escaping air pushes it (d) the straw is heavy
11. 11.True or false: two chairs is not needed for the balloon rocket. (a) False (b) True
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we change it (b) we keep it the same (c) we measure it
13. 13.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
14. 14.🎈 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
15. 15.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it blows air in (c) it holds water (d) it guides the balloon
16. 16.🧺 Which of these is needed for the balloon rocket? (a) a long string (b) a mirror (c) a magnet (d) turmeric powder
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it goes backward first (d) it travels farther
18. 18.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) the swimmer (d) gas from the rocket
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) a battery cell
20. 20.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) sticky tape (d) vinegar
21. 21.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the slope of the string (b) the same string (c) distance it travels (d) the same straw
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same string (c) how big we blow it
24. 24.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
25. 25.⚖️ 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
26. 26.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
27. 27.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the balloon (d) gas from the rocket
28. 28.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) sticky tape (c) yeast (d) two chairs
29. 29.True or false: gas from the rocket goes backward. (a) True (b) False
30. 30.🔮 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
31. 31.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) a battery cell (c) yeast (d) two chairs
32. 32.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) the swimmer (d) water a swimmer pushes
33. 33.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
34. 34.True or false: yeast is needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
36. 36.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) keep them in your mouth (d) throw them away safely
37. 37.⚖️ 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) the slope of the string (c) distance it travels
38. 38.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
39. 39.⚖️ 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 change it (c) we keep it the same
40. 40.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the rocket (d) the balloon

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