3rd grade · Science · Unit 4 of 10
Basic Needs & Life Cycles
What living things need, and the stages of their lives.
What your child practices
Practices the basic needs of organisms (food, water, air, shelter) and the life cycles of plants and animals, including metamorphosis in butterflies and frogs.
Oregon State Standards learning standard: 3.LS1.1 · life cycles of birth, growth, reproduction and death
Sample questions
A taste of this unit. In the app, questions change every time and get easier or harder to match your child.
Question 1
A plant kept in a dark cupboard would…
- grow stronger
- make extra food
- grow weak without light
grow weak without light
Hint: Plants need light to make food.
Question 2
A baby frog that lives in water and has a tail is a…
- tadpole
- chick
- pup
tadpole
Hint: Tadpoles grow legs and lose their tails.
Question 3
Why do animals need water?
- To make noise
- To build tunnels
- To stay alive
To stay alive
Hint: All living things need water.
Question 4
A seed grows into a…
- tadpole
- egg
- seedling
seedling
Hint: A seedling is a young plant.
Question 5
An organism that stops getting food will eventually…
- become weak or die
- get younger
- grow faster
become weak or die
Hint: All organisms need food.
Question 6
A drought (no rain) is hard for plants because they lack…
- water
- sunlight
- air
water
Hint: Plants need water to live.