Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 530 · 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.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it turns into a kite (d) it goes much farther
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “how big we blow it”? (a) we keep it the same (b) we change it (c) we measure it
3. 3.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
4. 4.🚀 Which of these goes forward? (a) gas from the rocket (b) water from the oars (c) the rowing boat (d) water a swimmer pushes
5. 5.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the slope of the string (b) the same string (c) distance it travels (d) how big we blow it
7. 7.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
8. 8.🛟 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
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is what we measure. (a) True (b) False
10. 10.⚖️ 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
11. 11.True or false: yeast is needed for the balloon rocket. (a) True (b) False
12. 12.⚖️ 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
13. 13.🚀 In “push back, move forward”, which way does the rowing boat go? (a) goes backward (b) goes forward
14. 14.True or false: air from the balloon goes forward. (a) True (b) False
15. 15.⚖️ 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
16. 16.🛟 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
17. 17.⚖️ 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
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) the same string (d) the slope of the string
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a long string (c) two chairs (d) a balloon
20. 20.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
21. 21.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) escaping air pushes it (c) a magnet pulls it (d) the string pulls it
22. 22.🔮 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
23. 23.🚀 Which of these goes forward? (a) water a swimmer pushes (b) the balloon (c) air from the balloon (d) gas from the rocket
24. 24.⚖️ 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 string (c) distance it travels
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) sticky tape (c) a long string (d) a magnet
26. 26.🧺 Do we need yeast for the balloon rocket? (a) not needed (b) needed
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is what we measure. (a) True (b) False
28. 28.True or false: the balloon goes backward. (a) True (b) False
29. 29.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) yeast
30. 30.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
31. 31.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
32. 32.⚖️ 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 straw (c) distance it travels
33. 33.True or false: the swimmer goes forward. (a) True (b) False
34. 34.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a balloon rocket (d) a fridge magnet
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we keep it the same (b) we measure it (c) we change it
36. 36.⚖️ 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 change it (c) we keep it the same
37. 37.⚖️ 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
38. 38.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a mirror (c) sticky tape (d) two chairs
39. 39.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
40. 40.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids