6th grade Science practice sheet
California Content Standards · from Gradelings · Name: ______________________
Question 1
Which body system does each part belong to? Tap an item, then tap its basket.
Sort into: ⚡ nervous system · 🚰 excretory system · 🧪 endocrine (hormone) system
- 🎈bladder
- 🔗spinal cord
- 🧠brain
- 🏃adrenal glands
- 💧kidneys
- 🎛️pituitary gland
⚡ nervous system: spinal cord, brain · 🚰 excretory system: bladder, kidneys · 🧪 endocrine (hormone) system: adrenal glands, pituitary gland
Hint: The nervous system carries fast electrical messages. The excretory system removes wastes. Endocrine glands release hormones into the blood.
Question 2
What does a person with nearsightedness find hard?
- seeing things far away clearly
- seeing things up close
- hearing sounds
- tasting salt
seeing things far away clearly
Hint: Glasses can correct it.
Question 3
Which part controls the cell's activities?
- Nucleus
- Vacuole
- Chloroplast
- Cell wall
Nucleus
Hint: It holds the DNA.
Question 4
Which needs more energy to heat by 10 °C?
- 100 g of water
- 1 g of water
- 10 g of water
- 1 kg of water
1 kg of water
Hint: More mass needs more energy.
Question 5
Engineers who share results can…
- combine the best features of different designs
- ignore data
- keep designs secret forever
- skip testing
combine the best features of different designs
Hint: Learn from each other.
Question 6
Which is an example of work in the science sense?
- wishing a box would move
- pushing hard on a wall that does not move
- holding a box still
- lifting a box onto a shelf
lifting a box onto a shelf
Hint: Work needs the object to move in the direction of the force.
Question 7
High air pressure usually brings…
- hurricanes
- clear, calm weather
- heavy rain
- storms
clear, calm weather
Hint: Sinking air.
Question 8
Why is CO₂ in the atmosphere higher now than 200 years ago?
- Plants make more CO₂
- There are fewer people
- People burn much more fossil fuel
- Volcanoes stopped
People burn much more fossil fuel
Hint: Industrial era.
Question 9
Birds building nests is a behavior that helps…
- plants grow
- the weather change
- their young survive
- them fly faster
their young survive
Hint: A safe place for eggs.
Question 10
Which organs filter wastes out of your blood to make urine?
- heart
- bladder
- kidneys
- stomach
kidneys
Hint: You have two bean-shaped kidneys near your lower back. They clean your blood all day long.
Answer key
- 1. ⚡ nervous system: spinal cord, brain · 🚰 excretory system: bladder, kidneys · 🧪 endocrine (hormone) system: adrenal glands, pituitary gland (Body Systems)
- 2. seeing things far away clearly (Our Senses)
- 3. Nucleus (Cells: Life's Building Blocks)
- 4. 1 kg of water (Thermal Energy & Insulation)
- 5. combine the best features of different designs (Engineering Design)
- 6. lifting a box onto a shelf (Work, Energy & Efficiency)
- 7. clear, calm weather (Weather Systems)
- 8. People burn much more fossil fuel (Climate & Climate Change)
- 9. their young survive (Growing & Reproducing)
- 10. kidneys (Body Systems)
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.