Science

Question 1

1Wind-pollinated flowers usually have

Medium

A. bright petals and nectar B. small dull petals and light pollen C. strong scent D. sticky heavy pollen

Question 2

2The main excretory organs are the kidneys, lungs, skin and

Medium

A. brain B. heart C. stomach D. liver

Question 3

3Regular exercise is good for the heart.

Easy

A. True B. False

Question 4

4Which is a major cause of air pollution?

Easy

A. smoke from vehicles and burning refuse B. rainwater harvesting C. tree planting D. solar panels

Question 5

5An insect has

Easy

A. three body parts and six legs B. two body parts and eight legs C. no legs D. many legs

Question 6

6The young of a grasshopper is a ___.

Medium

Your answer (fill in the blank)

Question 7

7Burning (combustion) needs fuel, heat and

Easy

A. carbon dioxide B. water C. oxygen D. nitrogen

Question 8

8The test for starch uses

Easy

A. Benedict's solution only B. litmus paper C. iodine solution, which turns blue-black D. lime water

Question 9

9The safety symbol of a flame means the substance is

Easy

A. toxic B. flammable C. harmless D. corrosive

Question 10

10The wave-like muscle movement that pushes food along the gut is

Medium

A. digestion B. absorption C. egestion D. peristalsis