Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 535 · 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: gas from the rocket goes backward. (a) False (b) True
2. 2.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
3. 3.🚀 Which of these goes backward? (a) the balloon (b) the rowing boat (c) the swimmer (d) water from the oars
4. 4.True or false: the rowing boat goes backward. (a) True (b) False
5. 5.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
6. 6.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a long string (c) vinegar (d) a balloon
7. 7.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
8. 8.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) False (b) True
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) yeast (c) a long string (d) sticky tape
11. 11.⚖️ 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
12. 12.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) forward (c) it stays still (d) straight down
13. 13.🚀 Which of these goes forward? (a) air from the balloon (b) gas from the rocket (c) water from the oars (d) the rowing boat
14. 14.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a battery cell (d) two chairs
15. 15.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
16. 16.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a drinking straw (c) a mirror (d) two chairs
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror
18. 18.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it holds water (c) it makes it heavier (d) it blows air in
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) turmeric powder (b) a long string (c) sticky tape (d) two chairs
20. 20.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
21. 21.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels farther (c) it goes backward first (d) it travels less far
22. 22.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the rowing boat (d) gas from the rocket
23. 23.⚖️ 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) distance it travels (d) the same tape
24. 24.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
25. 25.True or false: turmeric powder is not needed for the balloon rocket. (a) True (b) False
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.True or false: a mirror is needed for the balloon rocket. (a) True (b) False
29. 29.True or false: sticky tape is needed for the balloon rocket. (a) False (b) True
30. 30.⚖️ 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
31. 31.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
32. 32.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) aim it at your friend (c) keep it away from faces (d) put string round a neck
33. 33.⚖️ 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 change it (c) we measure it
34. 34.True or false: water from the oars goes forward. (a) False (b) True
35. 35.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it can pop loudly (d) it gets too heavy
36. 36.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) turmeric powder (d) a balloon
37. 37.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.⚖️ 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) False (b) True

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