Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 933 · 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: a magnet is needed for the balloon rocket. (a) True (b) False
2. 2.⚖️ 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
3. 3.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
4. 4.🔮 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
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) sticky tape (c) a long string (d) a mirror
7. 7.🛟 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
8. 8.⚖️ 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 change it (c) we keep it the same
9. 9.True or false: a battery cell is needed for the balloon rocket. (a) True (b) False
10. 10.True or false: two chairs is not needed for the balloon rocket. (a) True (b) False
11. 11.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a long string (c) a magnet (d) a battery cell
12. 12.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) a battery cell (c) two chairs (d) sticky tape
13. 13.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
14. 14.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
15. 15.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) how big we blow it (b) the slope of the string (c) distance it travels (d) the same straw
16. 16.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) it goes faster (b) less friction (c) no change at all (d) more friction, less far
17. 17.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a mirror (b) a fridge magnet (c) a balloon rocket (d) a sundial
18. 18.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) straight down (c) it stays still (d) forward
19. 19.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) sticky tape (c) a magnet (d) two chairs
20. 20.🚀 Which of these goes backward? (a) air from the balloon (b) the rowing boat (c) the balloon (d) the rocket
21. 21.🧺 Which of these is not needed for the balloon rocket? (a) a balloon (b) a long string (c) a drinking straw (d) a magnet
22. 22.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the slope of the string is kept the same. (a) False (b) True
23. 23.True or false: water a swimmer pushes goes forward. (a) True (b) False
24. 24.🚀 Which of these goes forward? (a) water from the oars (b) the balloon (c) air from the balloon (d) water a swimmer pushes
25. 25.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the straw is heavy (d) the string pulls it
26. 26.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
27. 27.🚀 Which of these goes backward? (a) water a swimmer pushes (b) the swimmer (c) the rowing boat (d) the balloon
28. 28.⚖️ 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
29. 29.🧺 Do we need a magnet for the balloon rocket? (a) needed (b) not needed
30. 30.True or false: vinegar is needed for the balloon rocket. (a) False (b) True
31. 31.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same straw is kept the same. (a) False (b) True
32. 32.🚀 Which of these goes forward? (a) the rocket (b) water from the oars (c) gas from the rocket (d) air from the balloon
33. 33.🔮 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
34. 34.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a balloon (b) vinegar (c) a long string (d) two chairs
35. 35.True or false: air from the balloon goes backward. (a) True (b) False
36. 36.🚀 In “push back, move forward”, which way does the balloon go? (a) goes backward (b) goes forward
37. 37.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a balloon (d) a long string
38. 38.True or false: sticky tape is needed for the balloon rocket. (a) True (b) False
39. 39.🛟 Why should you not over-blow the balloon? (a) it can pop loudly (b) it changes colour (c) it turns into a kite (d) it gets too heavy
40. 40.True or false: water from the oars goes forward. (a) True (b) False

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