PS.5.1.1 Matter

Drag and Drop

The Law of Conservation of Mass:



Mass is ​

Placeholder

in a chemical reaction.

Drag these tiles and drop them in the correct blank above

neither created nor destroyed

created

destroyed

both created and destroyed

Multiple Select

Which of the following are examples of liquids? Pick TWO!

• Water

• Chair

• Golf Ball

• Juice

Multiple Choice

Which state of matter has a fixed shape and fixed volume?

• Solid

• Liquid

• Gas

• Plasma

Multiple Choice

According to the slides, what is the weight of an object equal to?

• The sum of the weight of its parts

• The weight of its largest part

• The weight of its smallest part

• The average weight of its parts

Dropdown

Examine the experiment shown, then fill in the blanks.



The experiment shows a ​

Select answer

system.

The mass at the end of the experiment will be ​

Select answer

the initial mass.

Multiple Choice

Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. If Anthony weighs the water and baking soda solution, what will its mass be?

• 4.75 grams

• 5.25 grams

• 5.0 grams

• 7.5 grams

Multiple Choice

Two students added a piece of zinc to a solution of hydrochloric acid in an open beaker. The mass of the products was found to be less than the total mass of the reactants. Which of the following statements best explains the loss of mass?

• Zinc metal is more dense than the acid.

• The chemical activity of the acid destroyed metal atoms.

• A gas was released during the reaction.

• Some of the zinc atoms failed to react.

Multiple Choice

How many grams of coal were present at the start of the chemical change?

• Unknown

• 100 g

• 200 g

• 50 g

Multiple Choice

The Law of Conservation of Mass states that the total mass of the reactants should be

• More than the mass of the products

• Equal to the mass of the products

• Ignored during the reaction

• Less than the mass of the products

Open Ended

Explain how the process of freezing water into ice cubes demonstrates a physical change. Use evidence from the lesson to support your answer.

Multiple Select

Select all statements that are true about physical changes in matter.

• The substance remains the same after the change.

• Shape or phase may change, but the material stays the same.

• New matter is formed.

• Chemical nature changes.

Open Ended

Give an example of a chemical change in everyday life and explain why it is considered a chemical change.

Multiple Choice

Which of the following best describes the difference between physical and chemical changes in matter?

• Physical changes alter the appearance but not the substance; chemical changes create new substances.

• Physical changes create new substances; chemical changes only change appearance.

• Both physical and chemical changes only change the appearance.

• Physical changes and chemical changes both create new substances.

Dropdown

On the stove, when I heat water until it bubbles to cook something, the water is changing from a​

Select answer

to a ​

Select answer

. This state of matter change is called ​​

Select answer

.​

Match

Match the following evidence with the observation

• Butter on bread is a

• Over cooked toast is a

• Coiled copper is a

• Chewing is a

• Digestion is a

Physical Change - because it is melting.

Chemical Change - because it is burned.

Physical Change - because it is bent.

Physical Change - because size changes.

Chemical change - because acids/bases.

• Physical Change - because it is melting.

• Chemical Change - because it is burned.

• Physical Change - because it is bent.

• Physical Change - because size changes.

• Chemical change - because acids/bases.

Hotspot

Select all the examples of a physical change.

Multiple Choice

Is wood that is burning in a brush pile has heat, and produces ashes an example of a physical or a chemical change?

• Physical

• Chemical

Multiple Choice

Which of the following is NOT an example of a physical change?

• crumpled paper
• pencil sharpening
• shrunken clothing
• rust

Multiple Choice

Is freezing juice an example of a physical change or a chemical change?

• Physical Change

• Chemical Change

Multiple Choice

A scientist mixes two liquids together. The result is a new solid substance. Which of these is true about this solid?

• The solid has different properties now compared to the two liquids.

• The solid was formed by a physical change, not a chemical change, in the two liquids.

• The solid can be separated back into the two liquids.

• The solid has the same state of matter as the two liquids.

Multiple Choice

If enough heat it taken away or removed from a container of water, what will happen to the water?

• It will begin to boil.

• It will turn into a gas.

• It will become a solid.

• It will increase in weight.