Integrated Science

Question 1

1A potato strip placed in distilled water increases in length because

Hard

A. air enters B. starch dissolves C. salt enters D. water enters the cells by osmosis

Question 2

2The spreading of particles from where they are many to where they are few is

Easy

A. transpiration B. diffusion C. osmosis D. evaporation

Question 3

3Salting fish helps to preserve it because

Easy

A. salt cooks the fish B. salt adds vitamins C. salt kills only flies D. salt draws water out of microbes by osmosis, so they cannot grow

Question 4

4The movement of particles from a region of high concentration to low concentration is

Easy

A. osmosis B. diffusion C. transpiration D. active transport

Question 5

5Osmosis is the movement of

Easy

A. water from a concentrated to a dilute solution B. gases from the lungs to the blood C. salt through any membrane D. water through a partially permeable membrane from a dilute to a more concentrated solution

Question 6

6A slice of pawpaw placed in strong salt solution becomes soft and limp because

Easy

A. it loses water by osmosis B. it gains salt and water C. it gains water by osmosis D. its cells divide

Question 7

7Diffusion is faster at higher temperatures because particles

Easy

A. become heavier B. stop moving C. move faster D. get bigger

Question 8

8Root hairs take in water from the soil by

Easy

A. diffusion of gases only B. photosynthesis C. osmosis D. transpiration

Question 9

9The smell of perfume spreads through a room because of

Easy

A. condensation B. diffusion C. transpiration D. osmosis

Question 10

10A raisin placed in water swells because of

Easy

A. diffusion of gas B. condensation C. osmosis D. evaporation