Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 483 · 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.🛟 What should you do with popped balloon pieces? (a) give them to a baby (b) keep them in your mouth (c) chew them (d) throw them away safely
2. 2.🚀 In “push back, move forward”, which way does the balloon go? (a) goes forward (b) goes backward
3. 3.True or false: a magnet is needed for the balloon rocket. (a) False (b) True
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 measure it (b) we change it (c) we keep it the same
5. 5.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) a long string (c) sticky tape (d) yeast
6. 6.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes much farther (c) it turns into a kite (d) it goes less far
7. 7.🚀 Which of these goes forward? (a) air from the balloon (b) the rowing boat (c) water from the oars (d) gas from the rocket
8. 8.🧺 Do we need sticky tape for the balloon rocket? (a) not needed (b) needed
9. 9.🧺 Do we need two chairs for the balloon rocket? (a) needed (b) not needed
10. 10.True or false: two chairs is needed for the balloon rocket. (a) False (b) True
11. 11.⚖️ 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 tape (c) distance it travels
12. 12.🔮 Predict: the string slopes uphill. What happens? (a) it travels farther (b) it speeds up (c) it travels less far (d) it goes backward first
13. 13.🎈 Why does the balloon rocket move along the string? (a) the string pulls it (b) the straw is heavy (c) escaping air pushes it (d) a magnet pulls it
14. 14.🚀 Which of these goes backward? (a) the rowing boat (b) the swimmer (c) the balloon (d) air from the balloon
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is kept the same. (a) True (b) False
16. 16.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) vinegar (b) a drinking straw (c) a balloon (d) a long string
17. 17.🚀 Which of these goes backward? (a) the rocket (b) the rowing boat (c) the balloon (d) water from the oars
18. 18.⚖️ 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) False (b) True
19. 19.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a fridge magnet (c) a mirror (d) a balloon rocket
20. 20.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) a drinking straw (c) a mirror (d) two chairs
21. 21.🚀 Which of these goes backward? (a) the rowing boat (b) gas from the rocket (c) the balloon (d) the swimmer
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a mirror (c) two chairs (d) a drinking straw
23. 23.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) it stays still (b) forward (c) backward (d) straight down
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “distance it travels”? (a) we measure it (b) we keep it the same (c) we change it
25. 25.🧺 Do we need a mirror for the balloon rocket? (a) needed (b) not needed
26. 26.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a magnet (b) a long string (c) sticky tape (d) two chairs
27. 27.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we change it (c) we measure it
28. 28.True or false: the rocket goes forward. (a) False (b) True
29. 29.🛟 Which is a safe rule for the balloon rocket? (a) aim it at your friend (b) blow it till it bursts (c) put string round a neck (d) keep it away from faces
30. 30.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the slope of the string”? (a) we measure it (b) we change it (c) we keep it the same
31. 31.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
32. 32.🎈 When does the balloon rocket stop? (a) when it gets cold (b) it never stops (c) when the air runs out (d) when it turns blue
33. 33.🧺 Which of these is not needed for the balloon rocket? (a) sticky tape (b) two chairs (c) yeast (d) a long string
34. 34.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) True (b) False
35. 35.True or false: vinegar is not needed for the balloon rocket. (a) False (b) True
36. 36.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) more friction, less far (d) no change at all
37. 37.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: distance it travels is what we measure. (a) False (b) True
38. 38.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
39. 39.True or false: a balloon is not needed for the balloon rocket. (a) False (b) True
40. 40.True or false: a magnet is not needed for the balloon rocket. (a) False (b) True

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