Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 126 · 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: the rocket goes backward. (a) True (b) False
2. 2.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) a magnet pulls it (c) the straw is heavy (d) escaping air pushes it
3. 3.🛟 Why should you not over-blow the balloon? (a) it gets too heavy (b) it changes colour (c) it turns into a kite (d) it can pop loudly
4. 4.🧺 Do we need turmeric powder for the balloon rocket? (a) not needed (b) needed
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a mirror (c) a balloon rocket (d) a sundial
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes less far (b) it turns into a kite (c) it goes much farther (d) it flies off the string
7. 7.True or false: a balloon is needed for the balloon rocket. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) a long string (d) a magnet
10. 10.True or false: the swimmer goes forward. (a) False (b) True
11. 11.True or false: two chairs is needed for the balloon rocket. (a) True (b) False
12. 12.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
13. 13.🚀 Which of these goes forward? (a) gas from the rocket (b) the balloon (c) air from the balloon (d) water from the oars
14. 14.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) straight down (b) it stays still (c) forward (d) backward
15. 15.🧺 Which of these is needed for the balloon rocket? (a) two chairs (b) vinegar (c) yeast (d) a battery cell
16. 16.⚖️ 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
17. 17.🛟 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
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the rowing boat
20. 20.🧺 Do we need a battery cell for the balloon rocket? (a) needed (b) not needed
21. 21.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rocket (d) gas from the rocket
22. 22.⚖️ 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
23. 23.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
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) distance it travels (c) the slope of the string
25. 25.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
26. 26.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
27. 27.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
28. 28.True or false: the rowing boat goes forward. (a) True (b) False
29. 29.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
30. 30.⚖️ 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 same string (d) distance it travels
31. 31.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
32. 32.🚀 Which of these goes forward? (a) water from the oars (b) water a swimmer pushes (c) the swimmer (d) air from the balloon
33. 33.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we measure it (b) we change it (c) we keep it the same
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same straw (c) the slope of the string (d) the same tape
36. 36.🛟 What should you do with popped balloon pieces? (a) keep them in your mouth (b) give them to a baby (c) throw them away safely (d) chew them
37. 37.⚖️ 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
38. 38.🎈 What is the job of the straw on the string? (a) it holds water (b) it makes it heavier (c) it blows air in (d) it guides the balloon
39. 39.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is kept the same. (a) True (b) False
40. 40.⚖️ 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

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