Science Experiments Final Test Worksheet

Science experiments lesson 30: Final test: science experiments and STEM · Set 93 · 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.True or false: aluminium foil reflects light well. (a) True (b) False
2. 2.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same tape is kept the same. (a) True (b) False
3. 3.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the amount of water (c) the length of the stem
4. 4.⚖️ Fair test — is lifting the cup easier with one pulley or with two? True or false: the same cup of coins is kept the same. (a) False (b) True
5. 5.True or false: a coin is denser than water. (a) True (b) False
6. 6.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is what we measure? (a) the same kind of bag (b) the kind of plant (c) sun or shade (d) amount of water drops
7. 7.🧈 What is the watery liquid left after the butter forms? (a) oil (b) buttermilk (c) vinegar (d) honey
8. 8.💧 Which change is this: drops under a pot lid? (a) condensation (b) freezing (c) evaporation (d) melting
9. 9.True or false: a mirror is needed for the float-or-sink test. (a) False (b) True
10. 10.True or false: white paper is needed for the secret lemon message. (a) True (b) False
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is kept the same? (a) the same straw (b) distance it travels (c) how big we blow it
12. 12.🧺 Do we need a balloon for the card-on-a-glass trick? (a) not needed (b) needed
13. 13.🔍 Which is the odd one out? (a) an empty capped bottle (b) a glass marble (c) a ping-pong ball (d) a cork
14. 14.🧺 Three of these are needed for the magnet test. Which one is NOT needed? (a) a bar magnet (b) test objects (c) a results chart (d) a battery cell
15. 15.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.🛟 Which rule keeps you safe when working with sunlight? (a) look at it in a mirror (b) look at it through glass (c) stare at the Sun (d) never look at the Sun
17. 17.🧺 Three of these are needed for the secret lemon message. Which one is NOT needed? (a) a small bowl (b) an adult with an iron (c) white paper (d) a battery cell
18. 18.🧺 Do we need a battery cell for the secret lemon message? (a) not needed (b) needed
19. 19.🥄 Does cooking oil dissolve in water? (a) does not dissolve (b) dissolves in water
20. 20.🪴 Which of these is a job of the flower? (a) give out water vapour (b) take in water from soil (c) make seeds (d) hold the plant in soil
21. 21.⚖️ Fair test — which paper shape holds the most coins? What do we do with “where coins are placed”? (a) we keep it the same (b) we change it (c) we measure it
22. 22.🧺 Which of these is not needed for the water rainbow? (a) a clear glass of water (b) a sunny window (c) turmeric powder (d) a sheet of white paper
23. 23.🧲 Which of these is not pulled by a magnet? (a) iron filings (b) a safety pin (c) a paper sheet (d) an iron nail
24. 24.True or false: cooking oil is denser than water. (a) False (b) True
25. 25.True or false: a feather floats on water. (a) False (b) True
26. 26.🥄 Which of these dissolves in water? (a) food colour (b) cooking oil (c) sawdust (d) small pebbles
27. 27.🫗 Why does cooking oil float on top of water? (a) oil is less dense (b) oil is heavier (c) oil is sticky (d) oil is hot
28. 28.🌉 Which of these makes a weak bridge? (a) paper with folded edges (b) rolled paper tubes (c) a U-shaped channel (d) a wet flat sheet
29. 29.True or false: sunlight is needed for the leafy bag test. (a) False (b) True
30. 30.⚖️ Fair test — do seeds need water to sprout? Which of these is what we measure? (a) how many seeds sprout (b) the same bowls (c) the same place (d) the number of seeds
31. 31.🧺 Three of these are needed for sprouting seeds. Which one is NOT needed? (a) cotton wool (b) moong seeds (c) a few days (d) yeast
32. 32.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) True (b) False
33. 33.🧺 Three of these are needed for the float-or-sink test. Which one is NOT needed? (a) a tub of water (b) a results table (c) turmeric powder (d) small test objects
34. 34.True or false: sugar from sugar water is done by filtering. (a) True (b) False
35. 35.🍋 Which of these steps is a job for an adult? (a) letting the paper dry (b) reading the message (c) plugging in the iron (d) dipping the cotton bud
36. 36.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) colour climbs up it (c) it turns to plastic (d) nothing ever happens
37. 37.🔍 Which is the odd one out? (a) a magnetic pin holder (b) a fridge magnet (c) a medicine dropper (d) a compass needle
38. 38.⚖️ Fair test — does a cloth filter or a cotton filter give clearer water? True or false: the amount poured is the one thing we change. (a) False (b) True
39. 39.⚖️ Fair test — is lifting the cup easier with one pulley or with two? What do we do with “the lifting height”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.🔮 Predict: seeds on wet cotton are kept in the freezer. What happens? (a) they do not sprout (b) they glow (c) they sprout faster (d) they grow fruit

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