Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 122 · 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.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) sticky tape (c) two chairs (d) a drinking straw
2. 2.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the slope of the string (c) the same string (d) the same tape
4. 4.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) gas from the rocket (d) the rowing boat
5. 5.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a fridge magnet (b) a sundial (c) a mirror (d) a balloon rocket
6. 6.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
7. 7.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when it turns blue (d) when the air runs out
8. 8.🚀 Which of these goes backward? (a) the rocket (b) the balloon (c) the rowing boat (d) air from the balloon
9. 9.⚖️ 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
10. 10.🧺 Do we need vinegar for the balloon rocket? (a) needed (b) not needed
11. 11.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) escaping air pushes it (c) the string pulls it (d) the straw is heavy
12. 12.⚖️ 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
13. 13.🛟 Which is a safe rule for the balloon rocket? (a) put string round a neck (b) keep it away from faces (c) aim it at your friend (d) blow it till it bursts
14. 14.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) vinegar (c) a drinking straw (d) sticky tape
15. 15.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes backward (b) goes forward
16. 16.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
17. 17.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it travels farther (d) it speeds up
18. 18.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes backward (b) goes forward
19. 19.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) two chairs (b) a balloon (c) a battery cell (d) a drinking straw
21. 21.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
22. 22.True or false: water a swimmer pushes goes forward. (a) False (b) True
23. 23.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes less far (c) it flies off the string (d) it goes much farther
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is the one thing we change. (a) False (b) True
25. 25.⚖️ 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
26. 26.⚖️ 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
27. 27.⚖️ 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
28. 28.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it turns into a kite (c) it changes colour (d) it gets too heavy
29. 29.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
30. 30.True or false: water a swimmer pushes goes backward. (a) False (b) True
31. 31.True or false: a drinking straw is not needed for the balloon rocket. (a) True (b) False
32. 32.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it guides the balloon (d) it holds water
33. 33.True or false: air from the balloon goes backward. (a) False (b) True
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) a balloon (c) a battery cell (d) a long string
35. 35.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the slope of the string (b) distance it travels (c) how big we blow it
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
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.⚖️ 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 measure it (c) we change it
39. 39.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
40. 40.True or false: turmeric powder is needed for the balloon rocket. (a) False (b) True

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