Question

question: where do we get energy to run, climb, play, and do all the other things we do?

1. form hypothesis: where do you think we humans get energy?

1. create a path. you will now form an energy path to see where our energy comes from.

a. click on the person and read. where do people get energy?
b. now click on the chicken. where does the chicken get energy?
c. click on the corn. where does the corn get energy?
d. click on the sun. how does the sun get energy?
e. fill in the energy path below starting with the sun.

Explanation:

This problem is about understanding the energy source for human activities, which relates to the flow of energy in ecosystems (food chains/webs). In Biology (Natural Science subfield), we study how energy moves from the Sun (via photosynthesis in plants like corn) to consumers (chicken, then humans). The steps involve tracing energy: Sun → corn (photosynthesis) → chicken (eats corn) → human (eats chicken or corn). So the subfield is Biology.

Answer:

The subfield is Biology (under Natural Science). The energy path is Sun → Corn (via photosynthesis) → Chicken (eats corn) → Person (eats chicken or corn). For the hypothesis, a common thought is "Humans get energy from the food we eat (like plants or animals)". For part 2: A. People get energy from food (like chicken, corn, other plants/animals); B. Chicken gets energy from food (like corn); C. Corn gets energy from the Sun (via photosynthesis); D. The Sun's energy comes from nuclear fusion (in its core). The energy path (E) is Sun → Corn → Chicken → Person (or Sun → Corn → Person, depending on diet).