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States of Matter
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What three things are made of matter?
Solids, liquids, gases
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What is mass? What is it measured in?
A measure of the amount of matter in an object. Kilograms
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What is volume? What is it measured in?
A measure of how much space an object takes up. Milliliters (mL)
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What can you use to measure the volume of a liquid? (3 Answers)
Graduated cylinder, beaker, measuring cup
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How do you measure the volume of a solid?
Length X Width X Height Displacement
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Mass and Volume= Matter is anything that has mass and takes up space
What two vocabulary words can be used to describe what matter is? Explain. Mass and Volume= Matter is anything that has mass and takes up space
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A force of gravity between Earth and an object
What is weight? A force of gravity between Earth and an object
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What measurement is used to measure weight?
pounds
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What is the same as pounds?
One newton=0.22 pounds 4.45 newton=1 pound
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What is the force of pull when dealing with weight?
gravity
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What does an object’s weight depend on?
Location in the universe
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Mass=Same Weight=Different
What stays the same as the astronauts go from Earth to the moon? What changes? Mass=Same Weight=Different
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How does the astronaut’s weight on the Moon compare with the astronaut’s weight on Earth?
Weigh less on the Moon
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What are the two properties of matter?
Mass and Volume
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A measure of how tightly packed the matter is in an object.
What is density? A measure of how tightly packed the matter is in an object.
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How do you calculate density?
Mass divided by Volume Ex: Mass 2g Volume 2mL 2 divided by 2= 1 g per mL
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What does high density mean? Also, draw a picture.
Many particles are tightly packed in a given area.
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What does low density mean? Also, draw a picture.
A few particles fill the same amount of space.
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What type of particles tend to be tightly packed together?
solids
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What type of particles tend to spread apart?
Liquids or gases
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List gas, solid, and liquid in order from most dense to the lease dense?
Solid, liquid, gas
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Why is water special? Solid water, ice, is less dense than liquid water. The particles in ice are more spread out than the particles in liquid water.
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What determines an object’s ability to sink or float?
density
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What word describes an object’s ability to float?
buoyancy
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When will an object sink?
When they are more dense than water.
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Allow energy to flow through them easily
What does conduct mean? Allow energy to flow through them easily
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What does insulate mean?
Do not allow energy to pass through
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What type of items conduct energy?
Metals
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What should cooking pots and pans have on them and why?
Wooden and ceramic handles so you do not get burnt
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Why are metals good conductors?
They conduct heat and electricity very well
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What does the plastic on the wire help with?
Works as an insulator around the wire
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Name some items that are insulators.
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What does magnetic mean?
The push or pull on objects.
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What two ends of a magnet attract? What two repel?
Attract= Positive and Negative Repel= Positive and Positive Negative and Negative
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Have very low density and great strength
What are aerogels? Have very low density and great strength Used to insulate windows
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What are the four properties of matter?
Density Buoyancy Conductivity Magnetism
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Mass=Same Weight=Less on Moon
If a rock was taken from Earth to the Moon, how would its mass and weight be affected? Mass=Same Weight=Less on Moon
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What are the three states of matter?
Solids, liquids, gases
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What can change substances into different states of matter?
Adding or removing heat
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Draw a picture of a solid, liquid, and gas?
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Eventually separate and become liquid
When a solid has particles than begin moving faster and faster, what is going to happen to the solid? Eventually separate and become liquid
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When a liquid has particles that being to move faster and faster, what is going to happen to the liquid? Become gas
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What is melting point? solid to liquid
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Changes from a liquid to a gas
What is boiling point? Changes from a liquid to a gas
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What does condenses mean?
Turns from gas to a liquid
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What does freeze mean? Liquid to a solid
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What is another word for melting point?
Freezing point
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How is evaporation different from boiling?
Evaporation=Gradual change from liquid to gas Boiling=Rapid change when heat is added
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What are the properties of solids?
Retain (Keep) their shape Same volume Not a fluid
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What are the properties of liquids?
Settle to the bottom of container Definite volume A fluid
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What are the properties of gases?
No definite volume Takes the shape of container A fluid
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To spread out when items get hotter
What is expansion? To spread out when items get hotter
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To shrink when items cool
What is contraction? To shrink when items cool
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How does a thermometer use expansion and contraction?
The liquid in a thermometer expand when temperature rise, and contract when temperature decrease.
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Give another example of expansion in every day life?
You write down some examples!
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Give another example of contraction in every day life?
You write down some examples!
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