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WorksheetsChemistry Year 7
Total questions: 33
Worksheet time: 17mins
What is the most reactive metal?
Potassium
Sodium
Calcium
Magnesium
What is the least reactive metal?
Platinum
Gold
Silver
Copper
Fill in the blanks:
Oxidisation is a ________ reaction when a __________ combines with ______.
(a)
What is the equation for the conservation of mass?
total mass of reactants = total mass of products
half the mass of reactants = half the mass of products
mass of reactants = mass of products
reactants = products
Fill in the blanks:
A reactant is a ________ you have at the _____.
A product is the ___ ________.
(a)
Fill in the blanks:
To test for oxygen you insert a ________ ______ into test tube of ___ and if oxygen is present, the splint _______(s).
(a)
What is a word equation?
Metal + Acid ------> Metal Salt + Hydrogen
Mg + HcI ---------> MgCl2 + H2
Al + HCI ---------> AlCl2 + H2
What are the layers of the Earth made from?
Crust
Mantle
Core
Magma
Lava
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)
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)
Tick two examples of sedimentary rock: -
Limestone
Chalk
Granite
Basalt
Marble
Tick two examples of Igneous rocks: -
Marble
Granite
Slate
Basalt
Limestone
Tick 2 examples of metamorphic rock: -
Marble
Chalk
Slate
Obsidian
Granite
How many types of element or compound does a pure substance have?
1
2
3
4
A pure substance has a fixed melting and boiling point.
True
False
Fill in the blanks:
Mixtures ______ be separated due to __________(s) in their ________ properties.
(a)
Tick the mixtures:-
Air
Saltwater
Water
Sugar
Milk
Liquids have the same boiling points
True
False
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)
Fill in the blanks:
A mixture is ___ or more ____ substances ______ together.
(a)
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)
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)
Fill in the blanks:
Solid - c____ t_______ and v________.
Liquid - in r_______ m______ but in c______.
Gas - in r______ m_____ and w_____ s______.
(a)
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)
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)
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)
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)
On what side of the PT are METALS?
Left
Right
Middle
Bottom
Top
On what side of the PT are the NON-METALS grouped?
(a)
What are the properties of a NON-METAL?
Poor conductor of heat and electricity
Good conductor of heat and electricity
Dull with a low density
Shiny with a high density
Brittle
Metal Oxide are ___________ at 20 degrees and are mostly __________.
(a)
Non-Metal Oxides are __________ at 20 degrees and are mostly ________________.
(a)
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)
