Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 146 · 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 is needed for the balloon rocket? (a) a mirror (b) a balloon (c) turmeric powder (d) vinegar
2. 2.True or false: air from the balloon goes backward. (a) False (b) True
3. 3.True or false: gas from the rocket goes backward. (a) False (b) True
4. 4.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
5. 5.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it changes colour (d) it can pop loudly
6. 6.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) put string round a neck (c) blow it till it bursts (d) keep it away from faces
7. 7.🧺 Do we need a magnet 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: how big we blow it is the one thing we change. (a) True (b) False
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
10. 10.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
11. 11.🎈 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
12. 12.🧺 Do we need turmeric powder for the balloon rocket? (a) needed (b) not needed
13. 13.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
14. 14.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
15. 15.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
16. 16.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels farther (c) it travels less far (d) it speeds up
18. 18.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) it goes faster (c) more friction, less far (d) no change at all
19. 19.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) the string pulls it (d) escaping air pushes it
20. 20.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a battery cell (c) two chairs (d) a long string
22. 22.True or false: the swimmer goes forward. (a) True (b) False
23. 23.⚖️ 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
24. 24.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
25. 25.🔮 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 less far (d) it goes much farther
26. 26.🧺 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
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a battery cell (d) two chairs
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) how big we blow it (c) distance it travels (d) the same string
30. 30.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a battery cell (c) a long string (d) vinegar
31. 31.True or false: water from the oars goes forward. (a) False (b) True
32. 32.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same straw (b) the slope of the string (c) the same tape (d) how big we blow it
33. 33.🚀 Which of these goes forward? (a) water a swimmer pushes (b) water from the oars (c) gas from the rocket (d) the rocket
34. 34.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) True (b) False
36. 36.True or false: the balloon goes backward. (a) False (b) True
37. 37.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
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.True or false: the rowing boat goes forward. (a) False (b) True
40. 40.⚖️ 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

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