6th grade Science practice sheet
Arizona Academic Standards · from Gradelings · Name: ______________________
Question 1
Butter left on a warm counter gets soft and runny. What is happening?
- Heated particles move faster, so the solid is starting to melt
- The particles are disappearing
- The butter is freezing
Heated particles move faster, so the solid is starting to melt
Hint: Heating a solid can make it a liquid.
Question 2
What is a compound?
💧- Two substances stirred together but not joined
- A substance made of atoms of two or more different elements chemically combined
- A metal that has been melted down
- A substance made of only one type of atom
A substance made of atoms of two or more different elements chemically combined
Hint: Water (H₂O) is a compound: hydrogen and oxygen atoms are chemically joined.
Question 3
Iron filings around a bar magnet show…
- electric current
- heat
- gravity
- magnetic field lines
magnetic field lines
Hint: Lines from pole to pole.
Question 4
Lifting a book higher increases its…
- temperature
- mass
- kinetic energy
- potential energy
potential energy
Hint: Higher = more stored.
Question 5
Spring tides happen when the Sun, Earth and Moon are…
- far apart in a random way
- at right angles
- hidden by clouds
- lined up
lined up
Hint: Gravity adds together.
Question 6
The Kuiper belt is a region of icy objects beyond…
- Earth
- Mars
- Mercury
- Neptune
Neptune
Hint: Pluto lives there.
Question 7
When snowshoe hare numbers rise, lynx numbers usually…
- rise a little later, because there is more food
- fall at the same time
- stay exactly the same
- rise first, then the hares rise
rise a little later, because there is more food
Hint: Predator numbers follow prey numbers, with a delay. Records of the two populations rise and fall in linked cycles.
Question 8
Put this food chain in order, from the organism that makes food to the last to eat.
- 🌾grass
- 🦗grasshopper
- 🦅hawk
- 🐸frog
grass → grasshopper → frog → hawk
Hint: Energy flows from the producer (grass) to the grasshopper, frog, snake and then hawk.
Question 9
Why do we say matter is cycled in an ecosystem?
- The same atoms are used again and again
- Matter leaves Earth in food
- New matter is created by producers
- Decomposers destroy matter
The same atoms are used again and again
Hint: Matter is not created or destroyed. It moves between living things and the environment.
Question 10
Small drops form on a cold window when steam touches it. This is…
- condensation
- melting
- freezing
condensation
Hint: A gas cooled into a liquid is condensation.
Answer key
- 1. Heated particles move faster, so the solid is starting to melt (Particles and Heat)
- 2. A substance made of atoms of two or more different elements chemically combined (Atoms & Elements)
- 3. magnetic field lines (Fields & Forces at a Distance)
- 4. potential energy (Kinetic & Potential Energy)
- 5. lined up (Seasons & Tides)
- 6. Neptune (Solar System Tour)
- 7. rise a little later, because there is more food (Ecosystems)
- 8. grass → grasshopper → frog → hawk (Food Chains & Energy)
- 9. The same atoms are used again and again (Cycles & Succession)
- 10. condensation (Particles and Heat)
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.