Grades K–2 · 8 connected explanations
Living Systems & Mind
Follow a growing plant, then notice how animal bodies and your own senses help living things respond to their surroundings.
Organisms
How does a seed become a young plant?
A seed begins a sequence of growth with new roots and leaves.
Organisms
How can a bird’s beak shape help it handle food?
An animal’s body shape can help it handle a particular kind of food.
Organisms
How does a butterfly change as it grows?
A butterfly shows that a living body can change greatly as it grows.
Organisms
How do our senses help us notice things?
Sensory organs help a body notice what is happening around it.
Organisms
How can your skin notice warmth and cold?
Skin supplies a specific example of sensory messages about warmth and cold.
Organisms
Why can a sudden fright make your heart beat faster?
Messages through the nervous system can coordinate several body responses.
Societies
Why are some sidewalk tiles covered in bumps?
A textured sidewalk uses the sense of touch to provide useful information.