Biology Ladder · Elementary · Grade K–3
Life Science for Young Learners
For ages 5 to 9, read aloud with a grown-up: living and nonliving, what plants and animals need, parts of a plant, seeds, animal groups, habitats, food chains, life cycles, senses, seasons and caring for living things.
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Unit 1 Living Things
4 topics
What makes something alive, what every living thing needs, and things that were once alive.
Unit 2 Plants
11 topics
What plants need, the parts of a plant and their jobs, seeds and how they travel and grow, and the plant parts we eat.
Unit 3 Animals
6 topics
What animals need and eat, body parts that help them, their coverings, how they move, and how parents care for their young.
Unit 4 Animal Groups
7 topics
Mammals, birds, fish, reptiles, amphibians and insects: what each group has in common, and how to sort animals into groups.
Unit 5 Habitats
6 topics
Where living things live: forests, deserts, oceans, ponds and icy places, animal homes, and how living things change their surroundings.
Unit 6 Food Chains
4 topics
Energy starts with the sun: plants make food, animals eat plants or other animals, and decomposers clean up.
Unit 7 Life Cycles
4 topics
How a plant, a butterfly, a frog and a chicken hatch or sprout and grow, and how life cycles compare.
Unit 8 Senses
3 topics
Our five senses, how animals use their senses, and observing like a scientist.
Unit 9 Seasons and Living Things
3 topics
How trees and animals change with the seasons: leaves, migration, hibernation and getting ready for winter.
Unit 10 Caring for Living Things
3 topics
Taking care of a pet, a plant and the wild places around us.