3rd grade · Science · Unit 7 of 12
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.
Alabama Course of Study content standard: 3.5; 3.10 · life cycles, and the food, water, air and shelter living things need
How we explain it
Children can open this short lesson before they practice.
- Living things need food, water, air and shelter.
- Plants make food from sunlight, air and water. Animals eat plants or other animals.
- Butterfly: egg, larva (caterpillar), pupa (chrysalis), adult.
Example: A caterpillar is which stage of a butterfly? Egg comes first, then the young form that eats leaves. Answer: larva
Basic Needs & Life Cycles in Alabama
In the Alabama Course of Study, this is unit 7 of 12 in 3rd grade Science, after Animal Life Cycles and before Traits & Variation.
Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.
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
Which is the right order for a plant?
- seed, seedling, adult plant, seeds
- seedling, seed, adult plant
- adult plant, seed, seedling
seed, seedling, adult plant, seeds
Hint: A plant grows from seed to adult and makes more seeds.
Question 2
The adult stage of a life cycle can…
- turn into rock
- only sleep
- make new young
make new young
Hint: Adults reproduce so the life cycle can start again.
Question 3
Animals get their food by…
- eating plants or other animals
- making it from sunlight
- drinking only air
eating plants or other animals
Hint: Animals cannot make their own food.
Question 4
Which is NOT a basic need of a pet fish?
- Food
- A video game
- Clean water
A video game
Hint: Fish need water, food and a safe place to live.
Question 5
What stage comes after the caterpillar?
- egg
- pupa (chrysalis)
- adult hatching
pupa (chrysalis)
Hint: Larva, then pupa, then the adult butterfly.
Question 6
Two different animals both live in a pond. They share the pond to meet their…
- toys
- homework
- needs
needs
Hint: Animals meet needs in their habitat.