Middle grade 7 Chemistry

Question 1

The Earth revolves around the Sun.

Accepted Answer

o

Question 2

What is the process by which plants make their own food using sunlight?

Accepted Answer

Photosynthesis

Question 3

Which gas do plants absorb from the atmosphere during photosynthesis?

Accepted Answer

2

Question 4

Water boils at 100 degrees Celsius at standard atmospheric pressure.

Accepted Answer

o

Question 5

What is the name of the green pigment found in plant cells that absorbs sunlight for photosynthesis?

Accepted Answer

Chlorophyll

Question 6

Which of these is a primary source of energy for most ecosystems on Earth?

Accepted Answer

1

Question 7

All living things are made up of cells.

Accepted Answer

o

Question 8

What part of a plant cell is responsible for photosynthesis?

Accepted Answer

Chloroplast

Question 9

Gravity is a force that pulls objects towards each other.

Accepted Answer

o

Question 10

Which of the following is NOT a state of matter?

Accepted Answer

0