Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 654 · 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 use a rough, thick string instead of a smooth one. (a) less friction (b) more friction, less far (c) no change at all (d) it goes faster
2. 2.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) sticky tape (c) a balloon (d) a drinking straw
3. 3.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same string (b) the same straw (c) distance it travels (d) the slope of the string
4. 4.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) sticky tape (c) a drinking straw (d) vinegar
5. 5.⚖️ 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
6. 6.🎈 Why does the balloon rocket move along the string? (a) a magnet pulls it (b) the string pulls it (c) the straw is heavy (d) escaping air pushes it
7. 7.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we keep it the same (b) we measure it (c) we change it
8. 8.🛟 What should you do with popped balloon pieces? (a) chew them (b) give them to a baby (c) throw them away safely (d) keep them in your mouth
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
10. 10.⚖️ 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
11. 11.🚀 Which of these goes backward? (a) the rocket (b) the swimmer (c) the balloon (d) water from the oars
12. 12.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes forward (b) goes backward
13. 13.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a sundial (c) a fridge magnet (d) a balloon rocket
14. 14.⚖️ 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
15. 15.🎈 When does the balloon rocket stop? (a) when it gets cold (b) when it turns blue (c) it never stops (d) when the air runs out
16. 16.🛟 Why should you not over-blow the balloon? (a) it turns into a kite (b) it can pop loudly (c) it changes colour (d) it gets too heavy
17. 17.🚀 Which of these goes forward? (a) air from the balloon (b) water a swimmer pushes (c) water from the oars (d) the rowing boat
18. 18.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is the one thing we change. (a) True (b) False
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a drinking straw (b) two chairs (c) a balloon (d) yeast
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) two chairs (c) sticky tape (d) a magnet
21. 21.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) a magnet (c) a balloon (d) a battery cell
22. 22.🚀 Which of these goes backward? (a) the swimmer (b) water a swimmer pushes (c) the rocket (d) the rowing boat
23. 23.🎈 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
24. 24.🧺 Do we need a balloon for the balloon rocket? (a) needed (b) not needed
25. 25.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
26. 26.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🔮 Predict: you blow the balloon up only a little. What happens? (a) it goes much farther (b) it turns into a kite (c) it goes less far (d) it flies off the string
28. 28.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes forward (b) goes backward
29. 29.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) distance it travels (b) how big we blow it (c) the same string
30. 30.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) keep it away from faces (c) put string round a neck (d) aim it at your friend
31. 31.True or false: a long string is not needed for the balloon rocket. (a) True (b) False
32. 32.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
33. 33.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it goes backward first (d) it travels less far
34. 34.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
35. 35.True or false: a magnet is needed for the balloon rocket. (a) True (b) False
36. 36.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
37. 37.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a mirror (d) a balloon
38. 38.True or false: sticky tape is not needed for the balloon rocket. (a) True (b) False
39. 39.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
40. 40.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) True (b) False

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