Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 772 · 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 vinegar for the balloon rocket? (a) not needed (b) needed
3. 3.True or false: the swimmer goes forward. (a) True (b) False
4. 4.True or false: air from the balloon goes forward. (a) True (b) False
5. 5.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we measure it (b) we keep it the same (c) we change it
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is what we measure. (a) True (b) False
7. 7.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) forward (b) backward (c) straight down (d) it stays still
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) yeast (d) vinegar
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) turmeric powder (c) a long string (d) sticky tape
10. 10.⚖️ 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
11. 11.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
12. 12.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) the slope of the string (c) distance it travels (d) the same tape
13. 13.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
14. 14.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
15. 15.⚖️ 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 tape (c) how big we blow it
16. 16.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it goes backward first (c) it travels less far (d) it speeds up
18. 18.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
19. 19.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it blows air in (c) it holds water (d) it makes it heavier
20. 20.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
21. 21.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) give them to a baby (d) throw them away safely
22. 22.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) escaping air pushes it (c) a magnet pulls it (d) the straw is heavy
23. 23.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) two chairs (d) a balloon
24. 24.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
25. 25.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
26. 26.True or false: water from the oars goes forward. (a) False (b) True
27. 27.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes forward (b) goes backward
28. 28.⚖️ 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
29. 29.🧺 Which of these is not needed for the balloon rocket? (a) a mirror (b) a balloon (c) sticky tape (d) two chairs
30. 30.⚖️ 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
31. 31.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
32. 32.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) water from the oars (d) the rowing boat
33. 33.True or false: air from the balloon goes backward. (a) True (b) False
34. 34.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it goes much farther (c) it turns into a kite (d) it flies off the string
35. 35.True or false: the rocket goes backward. (a) False (b) True
36. 36.🎈 When does the balloon rocket stop? (a) it never stops (b) when it gets cold (c) when it turns blue (d) when the air runs out
37. 37.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) keep it away from faces (c) blow it till it bursts (d) put string round a neck
38. 38.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it gets too heavy (d) it turns into a kite
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.True or false: a balloon is needed for the balloon rocket. (a) True (b) False

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