Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 781 · 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.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
2. 2.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) blow it till it bursts (d) aim it at your friend
3. 3.⚖️ 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
4. 4.⚖️ 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
5. 5.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rowing boat (d) water a swimmer pushes
6. 6.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
7. 7.⚖️ 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
8. 8.🧺 Which of these is needed for the balloon rocket? (a) turmeric powder (b) a long string (c) a mirror (d) a battery cell
9. 9.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True
10. 10.True or false: a battery cell is not needed for the balloon rocket. (a) False (b) True
11. 11.🚀 Which of these goes forward? (a) water from the oars (b) air from the balloon (c) water a swimmer pushes (d) the rocket
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it travels less far (c) it goes backward first (d) it travels farther
13. 13.🎈 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
14. 14.🚀 Which of these goes forward? (a) the swimmer (b) air from the balloon (c) water a swimmer pushes (d) water from the oars
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
16. 16.True or false: water a swimmer pushes goes forward. (a) False (b) True
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) a drinking straw (c) a battery cell (d) two chairs
18. 18.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) how big we blow it (c) the same straw (d) distance it travels
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) turmeric powder (b) sticky tape (c) a long string (d) a balloon
21. 21.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) a magnet pulls it (c) escaping air pushes it (d) the string pulls it
22. 22.True or false: the rocket goes forward. (a) False (b) True
23. 23.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we change it (b) we measure it (c) we keep it the same
24. 24.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it flies off the string (c) it goes less far (d) it turns into a kite
25. 25.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
26. 26.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it gets too heavy (c) it can pop loudly (d) it changes colour
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) False (b) True
28. 28.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
29. 29.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) water from the oars (d) the rocket
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is what we measure. (a) False (b) True
31. 31.🧺 Do we need a long string for the balloon rocket? (a) not needed (b) needed
32. 32.⚖️ 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
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
34. 34.🧺 Do we need yeast for the balloon rocket? (a) needed (b) not needed
35. 35.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
36. 36.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a mirror (d) sticky tape
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) the slope of the string (d) the same straw
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a balloon (c) a drinking straw (d) a long string
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) False (b) True
40. 40.⚖️ 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

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