Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 49 · 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 goes much farther (b) it goes less far (c) it turns into a kite (d) it flies off the string
2. 2.True or false: water a swimmer pushes goes forward. (a) False (b) True
3. 3.🎈 What is the job of the straw on the string? (a) it guides the balloon (b) it makes it heavier (c) it blows air in (d) it holds water
4. 4.🚀 Which of these goes forward? (a) the rocket (b) gas from the rocket (c) water a swimmer pushes (d) air from the balloon
5. 5.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
6. 6.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) the same string (c) how big we blow it
7. 7.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
8. 8.True or false: the rocket goes forward. (a) True (b) False
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) the same tape (b) how big we blow it (c) the slope of the string (d) the same straw
10. 10.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a balloon (c) a mirror (d) a drinking straw
11. 11.🧺 Do we need a balloon for the balloon rocket? (a) not needed (b) needed
12. 12.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True
13. 13.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is the one thing we change. (a) False (b) True
14. 14.True or false: yeast is needed for the balloon rocket. (a) False (b) True
15. 15.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) vinegar (c) a drinking straw (d) turmeric powder
16. 16.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
17. 17.True or false: the balloon goes backward. (a) True (b) False
18. 18.True or false: the rowing boat goes forward. (a) False (b) True
19. 19.True or false: a mirror is not needed for the balloon rocket. (a) False (b) True
20. 20.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a mirror (c) turmeric powder (d) a long string
21. 21.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
22. 22.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it changes colour (c) it gets too heavy (d) it can pop loudly
23. 23.🎈 Why does the balloon rocket move along the string? (a) the straw is heavy (b) the string pulls it (c) a magnet pulls it (d) escaping air pushes it
24. 24.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels less far (d) it travels farther
25. 25.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) vinegar (d) a drinking straw
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we change it (b) we keep it the same (c) we measure it
27. 27.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) turmeric powder (d) sticky tape
28. 28.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same straw (b) how big we blow it (c) the slope of the string (d) distance it travels
29. 29.True or false: water a swimmer pushes goes backward. (a) True (b) False
30. 30.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
31. 31.🎈 When does the balloon rocket stop? (a) when it turns blue (b) when the air runs out (c) when it gets cold (d) it never stops
32. 32.True or false: vinegar is needed for the balloon rocket. (a) True (b) False
33. 33.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a mirror (c) a fridge magnet (d) a balloon rocket
34. 34.True or false: a drinking straw is needed for the balloon rocket. (a) True (b) False
35. 35.⚖️ 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
36. 36.🚀 Which of these goes backward? (a) water from the oars (b) the rowing boat (c) the rocket (d) the swimmer
37. 37.🚀 Which of these goes backward? (a) the rowing boat (b) air from the balloon (c) the balloon (d) the rocket
38. 38.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) sticky tape (b) two chairs (c) a magnet (d) a long string
39. 39.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
40. 40.True or false: air from the balloon goes backward. (a) True (b) False

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