Solids, Liquids and Gases 2
In order to smell, particles from the object must enter your nose. These particles are gas.

Solids, Liquids and Gases 2

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The three states of matter are solid, liquid and gas. Each of these behaves in a different way. For example, it is not possible to cut a gas or to pour a solid. Matter can change state, moving from gas to liquid or liquid to solid - and vise versa. This is because the particles in gasses have more energy than those in liquids and so can move aroud much more. The particles in liquids have less energy than those in gasses but more than those in gasses and so move less than in gasses but more than in solids. The particles in solids barely move at all. We can give energy to the particles by heating them up. That's how ice melts into water and water evaporates into steam.

1.
Can sugar become a liquid?
Yes, when it is heated to a very high temperature
Yes, when it is heated to 100° Celsius
Sometimes, depending on what type of sugar it is
Sugar can never become liquid
Sugar becomes liquid at around 186° C - heating sugars to such high temperatures is how candies are made
2.
What is solid water called?
Magma
Dry ice
Ice
Water vapor
When water is placed in the freezer, it becomes a solid - ice
3.
A sweet fizzy drink contains what?
Solid only
Liquid only
Gas only
Solid, liquid and gas
Sweetened fizzy drinks contain solid (sugar), liquid (water) and gas (carbon dioxide)
4.
What is water called when it is a gas?
Helium
Carbon dioxide
Nitrogen
Water vapor
Water vapor is also called steam. Steam is invisible - what you see rising from a kettle or a pan is water droplets in the air
5.
Which of the following describes what happens when water evaporates?
Gravity causes the water to run downhill and disappear
The water gradually becomes solid and these solids break away from the liquid
The water doesn't exist any longer
Particles gain enough energy to break free from the liquid's surface
If a particle gets enough energy it leaves the liquid. Particles like this form gasses
6.
Although air is made up of several gasses, the two main ones are nitrogen and which other?
Helium
Oxygen
Carbon dioxide
Methane
Animals - including people - need oxygen to breathe!
7.
In warmer temperatures, how do particles of any material move?
More slowly
More quickly
Alternately slowly and quickly
Particles never change how they move
Warmer particles have more energy
8.
In order to smell, particles from the object must enter your nose. In which state of matter are these particles?
Solid
Liquid
Gas
Liquid or gas
You breathe the gas in through your nose and detect any smell which pass through
9.
When a material is heated, what happens to its particles?
They lose energy and become more strongly attached (attracted) to other particles
They gain energy and become less strongly attached (attracted) to other particles
They begin to stick together
They stop moving
Heat gives energy to the particles and makes them vibrate or move
10.
In cooler temperatures, how do the particles of any material move?
More slowly
More quickly
Alternately slowly and quickly
Particles never change how they move
Cooler particles have less energy
Author:  Sheri Smith

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