Science Experiments Final Test Worksheet

Science experiments lesson 30: Final test: science experiments and STEM · Set 56 · 40 questions

What you do (Find the experiment, use the idea): 1. Read the question and find its experiment. 2. Use that experiment’s science idea. 3. For a fair test: one thing changed, the rest kept the same, one thing measured. 4. For safety: an adult helps, nothing goes in the mouth, no heat, sharp tools or plug points for children.

1. 1.🔮 Predict: you hold a written word up to a mirror. The letters look ___. (a) in colour (b) much bigger (c) upside down only (d) flipped left to right
2. 2.⚖️ Fair test — does the card stay on with a full glass and with a half-full glass? What do we do with “the same card”? (a) we keep it the same (b) we measure it (c) we change it
3. 3.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same cup of coins is the one thing we change. (a) False (b) True
4. 4.📘 Light bouncing off a mirror is called ___. (a) evaporation (b) refraction (c) magnetism (d) reflection
5. 5.🧺 Do we need a battery cell for the secret lemon message? (a) needed (b) not needed
6. 6.True or false: yeast is needed for the leafy bag test. (a) True (b) False
7. 7.🛟 Does a cork float or sink in water? (a) floats (b) sinks
8. 8.⚖️ Fair test — does a stronger magnet pull a paper clip through more sheets of paper? True or false: the kind of paper is the one thing we change. (a) True (b) False
9. 9.🧺 Do we need turmeric powder for the paper helicopter? (a) not needed (b) needed
10. 10.🥄 Does food colour dissolve in water? (a) does not dissolve (b) dissolves in water
11. 11.🧺 Which of these is not needed for the paper helicopter? (a) a paper clip (b) turmeric powder (c) a ruler (d) a pencil
12. 12.🚁 Dropped from a raised hand, does a paper helicopter fall slowly or fast? (a) falls fast (b) falls slowly
13. 13.True or false: a magnet is something yeast does not need. (a) True (b) False
14. 14.🥄 Does sugar left unstirred dissolve faster or slower? (a) slower (b) faster
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) vinegar (b) a plastic comb (c) dry hair (d) a balloon
16. 16.⚖️ Fair test — does lemon juice or orange juice make darker secret writing? What do we do with “the same paper”? (a) we change it (b) we keep it the same (c) we measure it
17. 17.🧺 Do we need a jar with a tight lid for making butter? (a) not needed (b) needed
18. 18.🧈 Which of these is a change that can be undone? (a) milk turning to curd (b) melting ice (c) rusting iron (d) browning lemon ink
19. 19.⚖️ Fair test — does cold cream turn into butter faster than warm cream? What do we do with “time to make butter”? (a) we measure it (b) we keep it the same (c) we change it
20. 20.🧺 Do we need a mirror for the pendulum? (a) needed (b) not needed
21. 21.💧 Why do water drops form on the outside of a glass of ice water? (a) the glass leaks (b) the glass sweats (c) vapour in air cools (d) ice escapes the glass
22. 22.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the same jar is the one thing we change. (a) True (b) False
23. 23.🧺 Three of these are needed for the water cycle bowl. Which one is NOT needed? (a) ice cubes (b) a small cup (c) a big bowl (d) a mirror
24. 24.🍋 Which of these steps is a job a child can do? (a) plugging in the iron (b) ironing the paper (c) letting the paper dry (d) cutting the lemon
25. 25.📘 What do we call a seed starting to grow? (a) condensation (b) germination (c) pollination (d) evaporation
26. 26.🛟 Why should we wipe up spilled oil at once? (a) oil attracts magnets (b) spilled oil is slippery (c) oil turns into honey (d) oil makes it rain
27. 27.⚖️ Fair test — do the layers end up in the same order if we pour the liquids in a different order? Which of these is what we measure? (a) the same three liquids (b) how much of each liquid (c) the order of pouring (d) the order of the layers
28. 28.⚖️ Fair test — which kind of ball bounces highest? Which of these is kept the same? (a) the kind of ball (b) bounce height (c) the drop height
29. 29.True or false: a pebble does not move to a charged comb. (a) True (b) False
30. 30.🧺 Which of these is not needed for the paper helicopter? (a) a ruler (b) a pencil (c) safety scissors (d) a balloon
31. 31.🔭 At what angle are the mirrors set in a simple periscope? (a) 180 degrees (b) 45 degrees (c) 10 degrees (d) 90 degrees
32. 32.🪴 Which of these is a job of the roots? (a) give out water vapour (b) make seeds (c) make food in sunlight (d) take in water from soil
33. 33.⚖️ Fair test — does cold cream turn into butter faster than warm cream? True or false: the amount of cream is the one thing we change. (a) True (b) False
34. 34.⚖️ 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 straw (c) distance it travels
35. 35.🛟 What should you do after touching soil or seeds? (a) wash your hands (b) skip washing (c) lick your fingers (d) rub your eyes
36. 36.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the time we wait”? (a) we measure it (b) we change it (c) we keep it the same
37. 37.🛟 Why should you not wrap the string around your finger? (a) it gets wet (b) it turns blue (c) it gets longer (d) it can hurt your finger
38. 38.⚖️ Fair test — how does the shadow of a stick change through the day? True or false: the time of day is what we measure. (a) True (b) False
39. 39.🎈 What is the job of the straw on the string? (a) it blows air in (b) it makes it heavier (c) it holds water (d) it guides the balloon
40. 40.True or false: a mirror is needed for the leafy bag test. (a) True (b) False

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