Solid, Liquid, and Gas
In a solid, particles are...
A) close together
B) a little further apart
C) far apart
A) close together
In a liquid, particles are...
A) close together
B) a little further apart
C) far apart
B) a little further apart
Matter is.......(definition)
Anything that has weight and takes up space
5. What are the tiny pieces that make up all matter called?
A) Cells
B) Atoms
C) Particles
D) Molecules
The shape of a solid is ______ and the volume (weight) of a solid is ______.
A) fixed and fixed
B) fixed and non-fixed
C) non-fixed and fixed
D) non-fixed and non-fixed
A) fixed and fixed
Solids have a fixed volume and shape. The word fixed means "not changing," so, the size and shape of a solid object does not change. A book is a solid, so the amount of space it takes up does not change and it always stays in the shape of a book.
The shape of a liquid is ______ and the volume (weight) of a liquid is ______.
A) fixed and fixed
B) fixed and non-fixed
C) non-fixed and fixed
D) non-fixed and non-fixed
C) non-fixed and fixed
The amount of space a liquid takes up cannot change, but the liquid's shape can change. If you pour water from a tall glass into a shallow bowl, the water in the bowl takes up as much space as it did when it was in the glass. But the water in the bowl now has a bowl shape instead of a glass shape.
Particles in matter are always
A) still
B) moving
C) changing
B) moving
solids- vibrate in place (this is still movement)
liquids- slide over each other
gases- bounce off each other in every direction
Why can students near an open perfume bottle smell it before students farther away?
A) The perfume only releases a few scent particles
B) The particles take time to travel and spread out through the air
C) Only the students near the bottle have a good sense of smell
D) The air in the room blocks the smell from moving
B) The particles take time to travel and spread out through the air
Because odors travel through the air, they cannot be smelled at all parts of a room at once. Suppose your teacher opens a bottle of perfume in one corner of your classroom. The students closest to the bottle will smell the perfume first. Slowly, students farther and farther away from the bottle will start to smell the perfume. The particles from the perfume need time to travel across the room.
What happens when you pour water from a tall glass into a wide bowl?
A) The water’s shape changes, but its volume stays the same.
B) Both the shape and volume change.
C) The amount of water increases.
D) The water turns into a gas.
A) The water’s shape changes, but its volume stays the same.
A liquid has a fixed volume but does not have a fixed shape. The amount of space a liquid takes up cannot change, but the liquid's shape can change. If you pour water from a tall glass into a shallow bowl, the water in the bowl takes up as much space as it did when it was in the glass. But the water in the bowl now has a bowl shape instead of a glass shape.
In a gas, particles are...
A) close together
B) a little further apart
C) far apart
C) far apart
What does dissolve mean?
Mixes completely with a different material.
When sugar is dissolved in water, the resulting sugar water looks just like water and you do not see sugar floating around. The particles of sugar mixed completely with the water.
How do odor particles move through the air?
A) In straight lines from one place to another
B) In circles
C) By bumping into air particles and changing direction
D) By falling to the floor
C) By bumping into air particles and changing direction
The movement of the odor particles is similar to your movement when you walk across a crowded room. As you make your way across the room, you cannot go in a straight line. You bump into people and change directions. Similarly, the odor particles bump into air particles and change direction.
How do we know that air takes up space?
A) Air makes objects heavier
B) Inflated objects like tires and balls keep their shape because air fills them
C) Air makes things cold
D) Air has color
B) Inflated objects like tires and balls keep their shape because air fills them.
Basketballs, footballs, and soccer balls are all filled with air. If air did not take up space, these objects would always be flat, even if you tried to pump them full of air.
The shape of a gas is ______ and the volume (weight) of a gas is ______.
A) fixed and fixed
B) fixed and non-fixed
C) non-fixed and fixed
D) non-fixed and non-fixed
D) non-fixed and non-fixed
A gas does not have a fixed volume or shape. The amount of space that a gas takes up and the shape of a gas can change. A gas gets bigger or smaller depending on the container it is in. A gas always takes the shape of its container.
What is a solution?
A mixture in which the particles of a material are dissolved with the particles of another material.
Each part of a solution is the same as all other parts of the solution. Sugar water is a solution, so a drop of sugar water from the top of a glass has the same amount of sugar as a drop of water from the bottom of the same glass.
What causes odors from baking food to spread through the air?
A) Heat waves from the oven
B) Tiny particles from the food floating through the air
C) Sound waves from cooking
D) Light reflecting off the food
B) Tiny particles from the food floating through the air
Odors, such as the scent of baking food, reach your nose through the air. Particles of food that are too small to see float through the air. When these particles reach your nose, you smell the food.
What evidence shows that air has weight?
A) You can see it move
B) Air smells different
C) A balloon weighs more after it’s inflated
D) Air takes up space in tires
C) A balloon weighs more after it’s inflated.
If you weigh an empty balloon and then weigh the same balloon after it is blown up, you will find that the balloon weighs more when it is filled. The inflated balloon weighs more because of the air inside of it.
Why does a balloon get bigger when you blow air into it?
A) The rubber stretches to make space for the air particles
B) The air disappears inside
C) The balloon fills with heat
D) The air turns into water
A) The rubber stretches to make space for the air particles
You can easily fold and crumple an empty balloon. But as you blow into the balloon, it gets bigger and bigger. The air you put into the balloon fills the balloon because the air takes up space.
When sugar “disappears” after being stirred into water, what actually happens?
A) The sugar melts.
B) The sugar is destroyed.
C) The sugar breaks into tiny particles that mix with the water.
D) The sugar turns into water.
C) The sugar breaks into tiny particles that mix with the water.
When a material dissolves [dissolves: Mixes completely with a different material.] , it mixes completely with another material and appears as just one material. When sugar is dissolved in water, the resulting sugar water looks just like water and you do not see sugar floating around. The particles of sugar mixed completely with the water.
In a glass of sugar water, which statement is true?
A) The top has more sugar than the bottom.
B) The bottom has more sugar than the top.
C) Every part of the solution has the same amount of sugar.
D) The sugar settles in layers.
C) Every part of the solution has the same amount of sugar.
Each part of a solution is the same as all other parts of the solution. Sugar water is a solution, so a drop of sugar water from the top of a glass has the same amount of sugar as a drop of water from the bottom of the same glass.