Unit 13 Lesson 1 - WordPress.com...Unit 13 Lesson 1 What Are Solids, Liquids, and Gases?Matter Has Properties •All matter has physical properties. •You can observe a physical property

Unit 13 Lesson 1

What Are Solids, Liquids, and Gases?

Copyright © Houghton Mifflin Harcourt Publishing Company

Unit 13 Lesson 1 What Are Solids, Liquids, and Gases?


What’s the Matter?

• Matter has mass and volume. It cannot be created or destroyed.

• Mass is the amount of

matter in something. • Volume is the space

something takes up.

Here’s a riddle for you: Which has more mass, a kilogram of feathers or a

kilogram of sand?

13.1 images/matter.PNG

13.1 images/volume1.PNG

13.1 videos/What's Matter - Crash Course Kids.mp4


What’s the Matter?

Classwork 1

Question :1


Matter Has Properties

• What physical

properties can you

tell about these

apples?



• All matter has physical properties.

• You can observe a

physical property without changing the matter into a new substance.

• Odor, texture, and color

are some physical properties.



Classwork 1

Question :2


More Properties

•Physical properties that can be measured: •1-Temperature is a measure of the energy of motion of the particles in matter. •Temperature can be measured by using a thermometer.

13.1 images/temperature.PNG



13.1 videos/Temperature-kinetic energy.wmv


More Properties

•2-Volume: is the amount of space something takes up. Many tools can be used to measure volume.(?) •3-Mass: is the amount of matter in an object. Mass can be measured by using a balance.


More Properties

Which plate has more volume? Which ball has more mass?


More Properties

Classwork 1

Question :3


More Properties

•Density is another physical property of matter. •Density is found by dividing the mass of an object by its volume.

13.1 videos/Density.mp4


More Properties

Why balloons float in the air?


More Properties

Classwork 1

Question :4


States of Matter

•Another physical property of matter is its state. •Solid, liquid, and gas are the most common states of matter on Earth.


States of Matter

Classwork 1

Question :5


States of Matter

•Matter is made up of tiny particles. •The particles in solids, liquids, and gases have different amounts of energy. •The amount of energy affects how fast the particles move and how close together they are.

13.1 videos/States of Matter for Kids.mp4


States of Matter

•A liquid is a substance that has a definite volume but does not have a definite shape.

•A gas is a substance that does not have a definite shape or volume.

•A solid is a substance with a definite shape and volume.

As you observe and read, name 3 things that are

being compared.

13.1 images/liquid.PNG

13.1 images/gas.PNG

13.1 images/solid.PNG


States of Matter

•The shape and volume of something depends on its state. •The particles in a solid do not move from place to place. •Because the particles in a solid cannot move, it has the same (definite) shape and volume no matter what container it is in.


States of Matter

•The particles in a liquid move more free than the solid particles but cannot move as freely as particles in a gas. •The particles in liquids slide past one another, so a liquid takes the shape of its container. •The particles in liquids cannot move very far from one another. So, a liquid has the same (definite) volume no matter what container it is in.


States of Matter

•Gas particles are far apart. They can move around without affecting one another. •Gases take the shape and volume of their container. The gas particles spread out to fill the container.


States of Matter

Classwork 1

Question :6


States of Matter

Classwork 2

Question :1


A Matter of Temperature

• The temperature of matter changes when it takes in or releases energy. • Changes in the amount of energy in matter can cause the matter to change

state.



•When a gas releases energy, its temperature goes down until it condenses, or changes to a liquid. •When a liquid releases energy, its temperature goes down until it freezes, or changes to a solid. •When a solid takes in energy, its temperature rises until it melts, or changes to a liquid. •When a liquid takes in energy, its temperature rises until it evaporates, or changes to a gas.

13.1 videos/Particulate Nature of Matter and Changes of State.mp4



Classwork 2

Question :2



Both boiling and evaporation turn liquids into gases.

Evaporation is

slower and

happens only

at a liquid’s

surface

Boiling is faster

and happens

throughout the

liquid



• Describe how heat energy is released or absorbed.



Liquid

Gas

Evaporate

Melt

Condense

Increase

Energy

Classwork 2

Question :3



• The temperature at which a certain type of matter freezes or melts is the same.

• For water, the

melting and freezing points are 0 °C.

•The temperature at which a certain type of matter condenses or boils is the same. •Liquid water boils at 100 °C. Water vapor condenses at 100 °C. •Evaporation can happen at temperatures below the boiling temperature.

13.1 videos/melting-boiling points game.wmv


Properties of Solids, Liquids, and Gases

•Each state of matter has different physical properties. Liquids and gases can flow. Different liquids may flow at different rates. •Gases can expand, taking up more space, or compress, taking up less space. •Solids have definite textures and shapes. The shape of some solids can be changed easily.



Textures

Compressed

Solids

Liquids

flow

Each state of matter has unique properties

Classwork 2

Question :4



Texture

Solid

Liquid

Gas

Matter

Temperature

Compress

Volume

Freeze

Mass

Density

Classwork 2

Question :5



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Unit 13 Lesson 1 - WordPress.com...Unit 13 Lesson 1 What Are Solids, Liquids, and Gases?Matter Has Properties •All matter has physical properties. •You can observe a physical property