Year 8 Quiz

Question 1

NOBLE GASES ARE ALSO CALLED

Accepted Answer

noble gases

Question 2

How does the reactivity of Group 1 metals change down the group?

Accepted Answer

Increases

Question 3

Name of substances with pH lower than 7.

Accepted Answer

HCl, acid

Question 4

What are two things that molecules can do to cause an increase in pressure?

Accepted Answer

Add heat & less Volume

Question 5

What are some effects of global warming?

Accepted Answer

More extreme weather events, Higher sea levels, More rain in certain climates

Question 6

Why pollination is important

Accepted Answer

Because Is the process of reproduction of plants

Question 7

Where are groups in the periodic table?

Accepted Answer

Vertical columns

Question 8

Combustion

Accepted Answer

Rapid reaction between oxygen and fuel that results in fire

Question 9

Combustion (burning)

Accepted Answer

Chemical Change

Question 10

What seed Dispersal method do these seeds represent?

Accepted Answer

Wind

Question 11

Which method of dispersal does this seed use?

Accepted Answer

Animals

Question 12

How do you calculate density?

Accepted Answer

Density = Mass / Volume

Question 13

How is combustion involved in the carbon cycle

Accepted Answer

the burning of fossil fuels releases co2

Question 14

Pollination is ...

Accepted Answer

pollen transferring from the anther to the stigma.

Question 15

What does the periodic table show?

Accepted Answer

Elements

Question 16

What is the definition of seed dispersal?

Accepted Answer

Movement or transport of seed away from the parent plant, When mature seeds disperse from the parent plant, Spreading of seeds from place to place by various means

Question 17

What is the density of water?

Accepted Answer

1g/cm3

Question 18

Global warming affects...

Accepted Answer

Every living on the earth

Question 19

Which element in group 1 is more reactive?

Accepted Answer

Rb

Question 20

What are the two types of pollination?

Accepted Answer

By wind or animal

Question 21

When butane (c4H10) burns in air in a combustion reaction, what are the major products?

Accepted Answer

CO2 and H2O

Question 22

What is self pollination?

Accepted Answer

Is pollination in the same flower

Question 23

The products of a complete combustion reaction are ....

Accepted Answer

Carbon Dioxide and Water

Question 24

What Seed Dispersal method do these seeds represent?

Accepted Answer

Animal

Question 25

Another name for group 1 elements is...

Accepted Answer

Alkali metals

Question 26

Group Seven elements are called ...

Accepted Answer

Halogens

Question 27

Combustion = ...

Accepted Answer

Burning

Question 28

What is global warming?

Accepted Answer

The global rise in temperature

Question 29

What direction does air pressure molecules push in?

Accepted Answer

All directions

Question 30

What Seed Dispersal method do these seeds represent?

Accepted Answer

Animal

Question 31

Why are gases easily compressed?

Accepted Answer

Because there is more space between the molecules

Question 32

Select a cause of Global Warming

Accepted Answer

Deforestation, The Greenhouse effect

Question 33

Incomplete combustion occurs if there is not enough ....

Accepted Answer

Oxygen

Question 34

What are the Noble gases?

Accepted Answer

Non-metals

Question 35

Pollination hapens in the...

Accepted Answer

Flower

Question 36

What is the lightest element on the periodic table?

Accepted Answer

H

Question 37

What Seed Dispersal method do these seeds represent?

Accepted Answer

Ejection

Question 38

What are the rows of the periodic table called?

Accepted Answer

Periods

Question 39

Select an effect of Global Warming

Accepted Answer

The rise of sea levels, The extinction of many animal species

Question 40

Who organised the first periodic table by their mass?

Accepted Answer

Dmitri Mendeleev

Year 8 Quiz

Questions 40

Year 8 Quiz

Questions 40