An olympic bronze medal is made
these elements- copper, zinc and tin. state the number of types of atoms in the medal. explain your answer.

Which of the following is an example of a non-falsifiable hypothesis? a. there is a teacup orbiting the milky way galaxy. b. there is no life on mars. c. the human species started in africa. d. humans cannot live without the amino acid methionine

Photosynthesis converts solar energy into what type of energy?

What’s the student’s scientific question