Light Sample Questions for Class 7
Question 1
A packet or bundle of light energy is called a(n) .
A. proton
B. wave
C. photon
D. electron
Question 2
Charlotte is working on a science lab. She is using the piece of equipment shown.Which safety symbol is most likely to be included in Charlotte's lab instructions?
A.
B.
C.
D.
Question 3
The series of chemical reactions that converts light energy, water, and carbon dioxide into sugar and gives off oxygen is
A. cellular respiration.
B. osmosis.
C. homeostasis.
D. photosynthesis.
Question 4
The normal gradual changes that occur in the types of species that live in an area is
A. respiration.
B. succession.
C. biotic factors.
D. abiotic factors.
Question 5
What is NOT a part of a well-designed experiment?
A. a control
B. multiple trials
C. a reproducible procedure
D. small sample size