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Worksheets

Chemistry Year 7

Total questions: 33

Worksheet time: 17mins

Name
Class
Date
1.

What is the most reactive metal?

a)

Potassium

b)

Sodium

c)

Calcium

d)

Magnesium

2.

What is the least reactive metal?

a)

Platinum

b)

Gold

c)

Silver

d)

Copper

3.

Fill in the blanks:

Oxidisation is a ________ reaction when a __________ combines with ______.

(a)  

4.

What is the equation for the conservation of mass?

a)

total mass of reactants = total mass of products

b)

half the mass of reactants = half the mass of products

c)

mass of reactants = mass of products

d)

reactants = products

5.

Fill in the blanks:

A reactant is a ________ you have at the _____.

A product is the ___ ________.

(a)  

6.

Fill in the blanks:

To test for oxygen you insert a ________ ______ into test tube of ___ and if oxygen is present, the splint _______(s).

(a)  

7.

What is a word equation?

a)

Metal + Acid ------> Metal Salt + Hydrogen

b)

Mg + HcI ---------> MgCl2 + H2

c)

Al + HCI ---------> AlCl2 + H2

8.

What are the layers of the Earth made from?

a)

Crust

b)

Mantle

c)

Core

d)

Magma

e)

Lava

9.

Fill in the blanks:

The rock cycle is the _______ where rocks ______ from one ____ to another.

Weathering is the _______ down of ____ by p_______, c________ or b__________ processes.

Erosion is the ________ of rock by w____, i__ or w___.

(a)  

10.

Minerals are ________(s) that ____(s) are made from.

Sedimentary rocks are made from _____(s) of ________ that can contain ______(s).

Igneous rocks are made from _______ magma with _______(s) arranged in _______(s).

Metamorphic rocks are made from ________ rocks exposed to ____ and ________ over a ____ period of time.

(a)  

11.

Tick two examples of sedimentary rock: -

a)

Limestone

b)

Chalk

c)

Granite

d)

Basalt

e)

Marble

12.

Tick two examples of Igneous rocks: -

a)

Marble

b)

Granite

c)

Slate

d)

Basalt

e)

Limestone

13.

Tick 2 examples of metamorphic rock: -

a)

Marble

b)

Chalk

c)

Slate

d)

Obsidian

e)

Granite

14.

How many types of element or compound does a pure substance have?

a)

1

b)

2

c)

3

d)

4

15.

A pure substance has a fixed melting and boiling point.

a)

True

b)

False

16.

Fill in the blanks:

Mixtures ______ be separated due to __________(s) in their ________ properties.

(a)  

17.

Tick the mixtures:-

a)

Air

b)

Saltwater

c)

Water

d)

Sugar

e)

Milk

18.

Liquids have the same boiling points

a)

True

b)

False

19.

Fill in the blanks:

A solvent is a _________ that ______(s) another _________.

A solute is a _________ that can ________ in a ______.

A solution is a _______ formed when a _______ dissolves a _______.

Dissolve is when a ______ mixes completely with a _______.

Soluble is the _______ of a substance that _______(s) in ______.

Solubility is the maximum ____ of solute that ________(s) in a certain ______ of solvent.

(a)  

20.

Fill in the blanks:

A mixture is ___ or more ____ substances ______ together.

(a)  

21.

In filtration you need:

- a beaker containing a _______

- filter _____ in a filter ______

You ____ mixture into funnel to produce a ______ in a beaker and a _____ in the filter paper.

(a)  

22.

Fill in the blanks:

Distillation is a way of __________ mixtures by _______ and __________ liquids.

Evaporation separating a _____ dissolved in a ______ by turning the liquid into a ___.

Chromatography is used to separate _________ ________ _________(s).

(a)  

23.

Fill in the blanks:

Solid - c____ t_______ and v________.

Liquid - in r_______ m______ but in c______.

Gas - in r______ m_____ and w_____ s______.

(a)  

24.

Fill in the blanks:

A substance is solid _____ its _______ point, a liquid _____ its _______ point, and a gas _____ its _______ point.

Condense is a ______ of state from ___ to ______ when ___________ drops from _______ point.

(a)  

25.

Fill in the blanks:

A particle is a very tiny ______ too small to be seen through a __________.

Two examples of a particle is an A___ and M_______.

The particle model is a way to _____ about substances _________ in terms of small, moving ________(s).

(a)  

26.

Fill in the blanks:

Diffusion is the process by which particles in ______(s) or ____(s) spread out from an area of ____ concentration to an area of ___ concentration.

Gas pressure is caused by the _________ of ________(s) on the walls of a _________.

(a)  

27.

Fill in the blanks:

An element is a _________ containing one ____ of ____.

The periodic table is a ____ of _______(s). There are __ elements in the table.

In the PT, elements are _______ with others of similar _________(s).

(a)  

28.

On what side of the PT are METALS?

a)

Left

b)

Right

c)

Middle

d)

Bottom

e)

Top

29.

On what side of the PT are the NON-METALS grouped?

(a)  

30.

What are the properties of a NON-METAL?

a)

Poor conductor of heat and electricity

b)

Good conductor of heat and electricity

c)

Dull with a low density

d)

Shiny with a high density

e)

Brittle

31.

Metal Oxide are ___________ at 20 degrees and are mostly __________.

(a)  

32.

Non-Metal Oxides are __________ at 20 degrees and are mostly ________________.

(a)  

33.

Fill in the blanks:

Melting ----> s____ to l_____ when temp ____(s) to _______ point

Freezing ----> l_____ to s____ when temp ____(s) below _______ point

Boiling ----> l_____ to g__ when temp ____(s) to _______ point

Condensing ----> g__ to l_____ when temp ____(s) below _______ point

Sublime ----> s____ directly to g__

(a)