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Year 8 - CW2 Flashcards | StudBud
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Year 8 - CW2
Year 8 - CW2
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Year 8 science
Flashcards
35 cards
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Practice quiz
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Host live
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Questions
35
Answers
1
A compound contains....
Only one element
Only one molecule
Multiple elements in fixed proportions
Many different types of molecules
2
What can we call this particle?
An atom
A compound
A molecule
An element
3
Which particle is the arrow pointing to?
Electron
Nucleus
Proton
Neutron
4
Which atomic model was proposed by J J Thomson?
The raisin ravioli model
The peanut butter jelly model
The fruit cake model
The plum pudding model
5
What is a molecule?
It is another word for atoms
A particle made from atoms bonded together
A group of many atoms
A substance with only one type of atoms
6
If an object is sonorous it.....
Can conduct electricity
Can conduct heat
Can be bent or molded
Produces sound when struck
7
Which one is true for a chemical change?
The substances can be separated
A new substance is produced
The state of matter changes
The change can be reversed
8
Which metal is liquid at room temperature?
Mercury
Thallium
Lithium
Gadolinium
9
Which category is aluminium in?
Metal
Non-metal
Semi-metal
Lanthanide
10
Which one is a solution?
The liquid in the right glass
The left glass
The right glass
There are no solutions shown
11
What can we call this particle?
A molecule
A compound
An element
An atom
12
Which one is a solvent?
The liquid in the left glass
The right glass
The left glass
The liquid in the right glass
13
What is a solute?
A combination of substances
A musical instrument
Something that is being dissolved
Something that looks clear
14
A pure substance contains....
Only one element
Only one type of molecules
Only one type of atoms
Only one type of atoms or molecules
15
What did Ernest Rutherford discover from his gold foil experiment?
Atoms have a nucleus at the center
Electrons are negatively charged
Protons are positively charged
Radiation can go through gold
16
Impure substances contain....
Multiple atoms of the same type put together
A single type of molecule
Multiple types of atoms and/or molecules
Many molecules
17
What are the three building blocks of atoms?
Gluons, muons, and quarks
Sand, concrete, and water
Hydrogen, helium, and lithium
Neutrons, protons, and electrons
18
Which of the following elements is a metal?
Gallium
Germanium
Astatine
Arsenic
19
Which one is an example of a physical change?
Water turning into water vapour
Boiling an egg
A salt is dissolved into a solution
Food is digested in our stomach
20
Which category is antimony in?
Semi-metal
Metal
Actinide
Non-metal
21
What is the symbol for cobalt?
Lt
CO
Cb
Co
22
Which element makes up pencil filling?
Carbon
Boron
Phosphorus
Lead
23
What does malleable mean?
Can be drawn into a wire
Has a shiny appearance
Can be made into sheets
Produces sound when struck
24
Sulfur is an example of.....
A non-metal
A dull metal
A crystal
A tasty dessert
25
What can we call this substance?
A compound
An element
A molecule
A group of atoms
26
What did John Dalton Claim?
Electrons are negatively charged
Protons are positively charged
All matter is made up of atoms
Everything is made of one type of particle
27
Which particle is the arrow pointing to?
Electron
Nucleus
Proton
Neutron
28
What is a solvent?
A type of metal used in soldering
Something that solves math problems
A brand of cleaning chemical
Something that dissolves other things
29
Which one is a solute?
The liquid in the right glass
The powder
The glass on the left
The liquid in the left glass
30
Which of the following elements is a non-metal?
Arsenic
Silicon
Xenon
Osmium
31
Which element makes up diamond?
Silicon
Tellurium
Rubidium
Carbon
32
What is an element?
Substance that can't be broken down into simpler substances
A type of material
Fire, water, wind, earth
When multiple atoms are combined
33
What does ductile mean?
Has a shiny appearance
Objects shaped like a duck's bill
Can be drawn into a wire
Can be compressed
34
Which particle is the arrow pointing to?
Neutron
Nucleus
Proton
Electron
35
What is a compound?
Another word for molecule
A pure chemical substance of only one element
A substance made from two or more elements bonded together
A chemical made from individual atoms only
