Quiz about Unit 1 Matter and Its Interactions Study Guide

Question 1

What is the main idea of the model that describes matter?

Accepted Answer

Matter is made of particles too small to be seen

Answer

Matter is only visible to the naked eye

Answer

Matter is made of large chunks

Answer

Matter is always solid

Question 2

What happens to the particles in matter when it changes from a solid to a liquid?

Accepted Answer

They move faster and further apart

Answer

They disappear

Answer

They become larger

Answer

They stop moving

Question 3

A substance has no definite shape or volume and takes the shape of the container that it is put in. The particles are very far apart. The substance is most likely a:

Accepted Answer

Gas

Answer

Solid

Answer

Liquid

Answer

Plasma

Question 4

Identify if each picture is a solid, liquid, or a gas.

Accepted Answer

Liquid

Answer

Solid

Answer

Gas

Answer

Plasma

Question 5

Identify if each picture is a solid, liquid, or a gas.

Accepted Answer

Solid

Answer

Liquid

Answer

Gas

Answer

Plasma

Question 6

Identify if each picture is a solid, liquid, or a gas.

Accepted Answer

Gas

Answer

Solid

Answer

Liquid

Answer

Plasma

Question 7

The Law of __________ states that matter is not made or destroyed.

Accepted Answer

Conservation

Answer

Creation

Answer

Destruction

Answer

Transformation

Question 8

A student puts 100g of ice in a sealed plastic bag. After the ice melts completely, what will be the weight of the bag and its contents?

Accepted Answer

Exactly 100g

Answer

Less than 100g

Answer

More than 100g

Answer

It depends on the room temperature

Question 9

Which of the following best demonstrates the conservation of matter?

Accepted Answer

An ice cube melting in a closed container

Answer

A puddle of water evaporating on a hot day

Answer

A candle burning in an open room

Answer

Sugar dissolving in an open cup of tea

Question 10

In a chemical reaction between baking soda and vinegar in a sealed container, bubbles form. What happens to the total weight of the container and its contents?

Accepted Answer

It stays the same

Answer

It increases

Answer

It decreases

Answer

It fluctuates up and down

Question 11

A student wants to prove that matter is conserved when salt dissolves in water. Which experimental design would best demonstrate this?

Accepted Answer

Measure the weight of salt and water separately, mix them in a sealed container, and weigh the container before and after mixing

Answer

Measure the weight of salt and water separately, then mix them in an open container and weigh again

Answer

Measure the volume of water before and after adding salt

Answer

Measure the weight of salt before adding it to water, then filter the solution and weigh the remaining salt

Question 12

Which demonstration would best explain conservation of matter to younger students?

Accepted Answer

Melting ice in a sealed container and weighing before and after

Answer

Burning a candle and showing that it gets smaller

Answer

Dissolving sugar in water and noting that the sugar "disappears"

Answer

Boiling water in an open pot and measuring the remaining water

Question 13

During an experiment, you compare the densities of two liquids, A and B. Liquid A sinks to the bottom when added to liquid B. What can you conclude about the densities of the two liquids?

Accepted Answer

Liquid A is more dense than liquid B.

Answer

Liquid A is less dense than liquid B.

Answer

Both liquids have the same density.

Answer

The densities cannot be compared without measuring.

Question 14

Which of these properties is a characteristic of non-metal materials?

Accepted Answer

They are usually dull and do not conduct electricity.

Answer

They are typically hard and shiny.

Answer

They are good conductors of electricity.

Answer

They have a high melting point.

Question 15

Which of the following is a physical property that can be used to identify a material?

Accepted Answer

Its color

Answer

Its ability to rust

Answer

Its reaction with water

Answer

Its flammability

Question 16

A material that is malleable can:

Accepted Answer

Can be bent without breaking

Answer

Be easily broken into pieces

Answer

Conduct electricity

Answer

Change color when heated

Question 17

Which of the following is an example of a chemical property?

Accepted Answer

Flammability

Answer

Color

Answer

Melting point

Answer

Density

Question 18

Which of these is NOT a sign that a new substance has formed?

Accepted Answer

The substances staying separate

Answer

A color change

Answer

The formation of a gas

Answer

A temperature change

Question 19

When iron rusts, what kind of change is happening?

Accepted Answer

A chemical change forming a new substance

Answer

A physical change

Answer

A reversible change

Answer

No change at all

Question 20

What do we call it when two or more substances mix but don't form a new substance?

Accepted Answer

A mixture

Answer

A solution

Answer

A chemical reaction

Answer

An element

Question 21

What is the main difference between homogeneous and heterogeneous mixtures?

Accepted Answer

Homogeneous mixtures have the same consistency and composition throughout, while heterogeneous mixtures do not

Answer

Homogeneous mixtures are always liquids, while heterogeneous mixtures are always solids

Answer

Heterogeneous mixtures can be separated easily, while homogeneous mixtures cannot be separated at all

Answer

Homogeneous mixtures are always hot, while heterogeneous mixtures are always cold

Question 22

Which of the following is an example of a homogeneous mixture?

Accepted Answer

Salt water

Answer

A bowl of cereal with milk

Answer

A jar of mixed nuts

Answer

A pepperoni pizza

Question 23

In a heterogeneous mixture:

Accepted Answer

You can often see different parts or layers

Answer

You can always see the different components with your naked eye

Answer

The components are evenly distributed and look the same throughout

Answer

It's impossible to separate the components

Question 24

________________ is anything that has mass and takes up space.

Accepted Answer

matter

Answer

volume

Answer

mass

Answer

weight

Unit 1 Matter and Its Interactions Study Guide

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