Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 702 · 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.🎈 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
2. 2.⚖️ 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
3. 3.⚖️ 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
4. 4.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes forward (b) goes backward
5. 5.True or false: sticky tape is not needed for the balloon rocket. (a) False (b) True
6. 6.⚖️ 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 same straw
7. 7.🔮 Predict: the string slopes uphill. What happens? (a) it goes backward first (b) it travels less far (c) it speeds up (d) it travels farther
8. 8.🧺 Which of these is needed for the balloon rocket? (a) a battery cell (b) a balloon (c) vinegar (d) yeast
9. 9.🧺 Do we need a long string for the balloon rocket? (a) needed (b) not needed
10. 10.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) distance it travels (c) the slope of the string (d) the same straw
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) distance it travels (b) the same string (c) the slope of the string (d) how big we blow it
12. 12.🎈 Why does the balloon rocket move along the string? (a) escaping air pushes it (b) a magnet pulls it (c) the string pulls it (d) the straw is heavy
13. 13.🚀 In “push back, move forward”, which way does the rocket go? (a) goes backward (b) goes forward
14. 14.True or false: yeast is not needed for the balloon rocket. (a) True (b) False
15. 15.⚖️ 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
16. 16.🚀 Which of these goes backward? (a) the swimmer (b) water from the oars (c) the balloon (d) the rocket
17. 17.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a magnet (c) a balloon (d) two chairs
18. 18.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
19. 19.🧺 Do we need a drinking straw for the balloon rocket? (a) not needed (b) needed
20. 20.True or false: air from the balloon goes backward. (a) False (b) True
21. 21.🚀 Which of these goes backward? (a) the balloon (b) the rocket (c) gas from the rocket (d) the swimmer
22. 22.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) two chairs (b) a drinking straw (c) turmeric powder (d) sticky tape
23. 23.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) turmeric powder (c) a drinking straw (d) sticky tape
24. 24.True or false: the balloon goes forward. (a) False (b) True
25. 25.True or false: gas from the rocket goes forward. (a) False (b) True
26. 26.🚀 Which of these goes forward? (a) air from the balloon (b) the rocket (c) water from the oars (d) gas from the rocket
27. 27.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) forward (d) straight down
28. 28.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a balloon rocket (b) a fridge magnet (c) a sundial (d) a mirror
29. 29.True or false: water a swimmer pushes goes backward. (a) False (b) True
30. 30.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a long string (b) a balloon (c) sticky tape (d) yeast
31. 31.🔮 Predict: you blow the balloon up only a little. What happens? (a) it flies off the string (b) it goes less far (c) it goes much farther (d) it turns into a kite
32. 32.🧺 Do we need vinegar for the balloon rocket? (a) not needed (b) needed
33. 33.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same tape”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🧺 Which of these is needed for the balloon rocket? (a) yeast (b) two chairs (c) a battery cell (d) a mirror
35. 35.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) no change at all (b) it goes faster (c) less friction (d) more friction, less far
36. 36.⚖️ 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
37. 37.True or false: a long string is needed for the balloon rocket. (a) True (b) False
38. 38.True or false: air from the balloon goes forward. (a) True (b) False
39. 39.🛟 What should you do with popped balloon pieces? (a) throw them away safely (b) keep them in your mouth (c) give them to a baby (d) chew them
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