States of Matter
Changing States of Matter
Descriptives of Matter
Thermal Expansion
Free Category
100
What are the three common states of matter?
Solid, liquid, gas.
100
What happens when particles are heated up?
Heated: they move quicker, expand and break apart from one another.
100
What are physical properties of matter?
Things that can be reversed, like cutting, squishing or heating.
100
What is thermal expansion?
When solids, liquids and gases are heated, their volumes increase. This is called thermal expansion.
Heating a substance speeds up its particles, so they have more kinetic energy.
The faster moving particles travel greater distances, so they occupy more space.
100
What temperature does water boil and freeze at?
100 and 0 Celsius.
200
What is the fourth state of matter?
Plasma
200
What happens when particles are cooled?
Cooled: they move slower, contract, and get closer together.
200
Do all objects have the same physical and chemical properties of matter?
No, they can share some but will never share all of the same properties.
200
What is thermal equilibrium?
Heat flows from high temperatures to low temperatures, where it stops at the temperature of the environment.
200
What is the difference between a chemical and physical change?
A chemical change is not reversible.
300
Fill in the blanks:
The process of solid to liquid is caused by _____.
the process of liquid to solid is caused by _____.
The process of gas to liquid is caused by _____.
Melting, freezing, condensation.
300
What is a chemical change and provide an example?
Chemical change is when a new substance is created, it cannot be reversed. An example would be a cake or rotting food.
300
The amount of shine something has is known as a object's ____.
Luster.
300
What is thermal contraction?
When objects get cold, the particles inside them slow down and move closer together, making the material contract.
300
Define the following: mass, volume, density.
Mass: is the amount of matter and object has.
Volume: is the amount of space an object takes up.
How compact an object is.
400
What particles do not have a definite shape and take the shape of their container?
Liquids.
400
Name 5/7 observations to how we know a chemical change occurred.
Colour change, gas production, temperature change, formation of precipitate, irreversibility, light production, new smell.
400
Provide 6/8 characteristics of matter that we discussed in class.
Length, colour, density, mass, elasticity, pressure, volume, luster (shine).
400
Explain the process of a thermometer.
Depending on the temperature, the particles inside the thermometer will expand and increase in temperature or contract and decrease in temperature.
400
Why are these liquid not mixing?
They have different densities, and are heavier/lighter than the other, causing the different liquids to float.
500
Provide a description of solid, liquid, and gas particles.
Solids are tightly packed together, hard and take their own shape, require a lot of energy to change their state.
Liquids are a type of matter that do not have a definite shape, they take on the shape of their container. The particles are close together, but they can move freely and might break apart.
Gasses are a type of matter that does not take their own shape, it can be invisible and will spread through a container. Their particles are crazy! They don’t like each other and move around freely.
500
Name the five physical changes of water.
Freezing, melting, evaporation, sublimation, deposition.
500
Provide 3/6 of the terms used for the chemical properties of matter.
Burning, rusting, moldy food, plants growing, baking, explosions.
500
Explain how a hot air balloon works.
The air inside the balloon is heated, causing the air particles inside the balloon to move quicker, resulting in the air being less dense and having the balloon float.
500
Explain deposition and sublimation.
Sublimation is the change of state from a solid to a gas without first becoming a liquid. It is most often used to describe the process of snow and ice changing into water vapour in the air without first melting into water.
Sublimation is where water vapour (gas) changes directly into ice (a solid).