Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 521 · 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) gas from the rocket (b) the balloon (c) the rocket (d) the rowing boat
2. 2.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
3. 3.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
4. 4.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we keep it the same (c) we measure it
5. 5.⚖️ 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 straw (c) the same string (d) distance it travels
6. 6.True or false: a long string is not needed for the balloon rocket. (a) False (b) True
7. 7.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the swimmer (d) gas from the rocket
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a magnet (b) a battery cell (c) a long string (d) turmeric powder
9. 9.🎈 What is the job of the straw on the string? (a) it makes it heavier (b) it holds water (c) it blows air in (d) it guides the balloon
10. 10.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
11. 11.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
12. 12.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a battery cell (c) a drinking straw (d) a balloon
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) the slope of the string (c) how big we blow it
14. 14.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we change it (b) we keep it the same (c) we measure it
16. 16.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it travels less far (b) it speeds up (c) it travels farther (d) it goes backward first
18. 18.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it turns into a kite (c) it goes much farther (d) it goes less far
19. 19.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
20. 20.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
21. 21.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
22. 22.⚖️ 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
23. 23.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
25. 25.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a magnet (c) a long string (d) two chairs
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) it stays still (c) backward (d) straight down
29. 29.🧺 Which of these is needed for the balloon rocket? (a) vinegar (b) turmeric powder (c) sticky tape (d) a mirror
30. 30.⚖️ 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 same tape (c) distance it travels
31. 31.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) a drinking straw (c) sticky tape (d) two chairs
32. 32.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when it gets cold (c) it never stops (d) when the air runs out
33. 33.🛟 Why should you not over-blow the balloon? (a) it changes colour (b) it can pop loudly (c) it gets too heavy (d) it turns into a kite
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a mirror (b) a long string (c) sticky tape (d) two chairs
35. 35.⚖️ 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) True (b) False
36. 36.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
37. 37.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a drinking straw (c) a mirror (d) yeast
38. 38.True or false: the rowing boat goes forward. (a) True (b) False
39. 39.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
40. 40.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) a battery cell (d) a balloon

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