Which is the goal of science?

a. to develop new technology

b. to test hypotheses

c. to expand knowledge

d. to apply information

Write a question about how changing temperature affects the gas inside the sports ball

Describe the path of a ray that approaches a mirror parallel to the principal axis.

Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger