2nd grade Science practice sheet
Alaska content standards · from Gradelings · Name: ______________________
Question 1
Which change CANNOT be undone?
- 🍞toast being made from bread
- 💧water freezing
- 🧊ice melting
🍞 toast being made from bread
Hint: Toasting makes a new material. You can't turn toast back into bread.
Question 2
Put the water cycle in order. Start with the sun warming the water.
- 🌊Water collects in rivers and oceans
- ☀️Sun warms water and it rises
- 🌧️Rain or snow falls
- ☁️Clouds form
Sun warms water and it rises → Clouds form → Rain or snow falls → Water collects in rivers and oceans
Hint: Warm water rises into the sky, makes clouds, falls as rain, and collects in rivers and oceans.
Question 3
Sand and small pebbles are mixed in a jar. Can you separate them again?
🪨- only by cooking them
- no, they became one new rock
- yes, with a sieve
yes, with a sieve
Hint: A sieve lets the sand fall through and keeps the pebbles.
Question 4
A solid, like a block, keeps its…
- container's shape
- own shape
- sound
own shape
Hint: Solids have their own shape.
Question 5
You test if plants need light. What stays the same?
- Water and soil
- The light and the water
- Nothing at all
- The amount of light
Water and soil
Hint: Change only the light.
Question 6
What can a big storm wave do quickly?
- Grow a mountain
- Wash away part of a beach
- Freeze the ocean
- Make a canyon
Wash away part of a beach
Hint: Strong waves move sand.
Question 7
Why do bike tires have bumps?
- To make them heavy
- To hold air out
- To make noise
- To grip the ground
To grip the ground
Hint: Bumps help them not slip.
Question 8
What happens when you warm up butter?
- 💨It becomes a gas right away
- 🪨It turns into stone
- 🧈It gets softer and melts
🧈 It gets softer and melts
Hint: Heat can change solids into liquids.
Question 9
What do people use water for every day?
- 🚿drinking, cooking and washing
- 🚫nothing at all
- 🎨only for painting
🚿 drinking, cooking and washing
Hint: We use water for lots of things at home and at school.
Question 10
Same material or a new one? Tap an item, then tap its basket.
Sort into: ✂️ same material · 🔥 new material made
- ⚪squish clay into a ball
- 🧊melt an ice cube
- 🍳fry an egg
- ✈️fold a paper plane
- 🍞toast bread
- 🎂bake a cake
✂️ same material: squish clay into a ball, melt an ice cube, fold a paper plane · 🔥 new material made: fry an egg, toast bread, bake a cake
Hint: Cutting, bending, melting and mixing keep the same material. Cooking and burning make something new.
Answer key
- 1. 🍞 toast being made from bread (Solids & Liquids)
- 2. Sun warms water and it rises → Clouds form → Rain or snow falls → Water collects in rivers and oceans (Water World)
- 3. yes, with a sieve (Changing Materials)
- 4. own shape (Mixtures & Materials)
- 5. Water and soil (Plants, Seeds & Pollinators)
- 6. Wash away part of a beach (Fast & Slow Earth Changes)
- 7. To grip the ground (Build, Test & Rebuild)
- 8. 🧈 It gets softer and melts (Solids & Liquids)
- 9. 🚿 drinking, cooking and washing (Water World)
- 10. ✂️ same material: squish clay into a ball, melt an ice cube, fold a paper plane · 🔥 new material made: fry an egg, toast bread, bake a cake (Changing Materials)
Want more than 10 questions?
In Gradelings the questions change every time and adjust to your child, with hints and kind feedback. See all science units.