Matter - Unit Test Review | Baamboozle - Baamboozle

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If you put a drop of food coloring in water and don't mix it, why will all of the water eventually turn the color of the food coloring?

The water particles are constantly flowing so they move the color around with it until it is evenly spread out.

True or false: the particles in a solid don't move

False - they vibrate slowly in place

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

gas

Which state of matter has a changing shape but a definite volume?

liquid

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

solid

Is this a mixture or solution: cake mix

mixture

Is this a mixture or solution: metal alloys

solution

Is this a mixture or solution: M&Ms

mixture

Is this a mixture or solution: salt water

solution

What does something need in order to be considered matter?

It needs to take up space and have mass.

Is this a physical or chemical property: the ability to react with oxygen

chemical

Is this a physical or chemical property: luster

physical

Is this a physical or chemical change: smashing a brick

physical

Is this a physical or chemical change: wood rotting

chemical

Is this a physical or chemical change: melting

physical

Is this a physical or chemical property: flammability

chemical

Is this a physical or chemical property: solubility

physical

Is this a physical or a chemical change: iron rusting

chemical

Is this a physical or chemical change: crumpling paper

physical

A solution of two metals mixed perfectly together is called...

an alloy

Sally weighs baking soda and vinegar and finds that it ways 50 g. She mixes them together and weights them again and finds that they now weigh 30 grams. Explain what happened.

The total amount of matter is still 50 g (due to the law of conservation of matter), but some of the gas escaped so it was not measured the second time.

If you increase the temperature of water, will salt dissolve quicker, slower, or at the same rate?

quicker

When something is dissolved, it is usually mixed completely evenly. This makes it an example of ...

a solution

Why is a tossed salad an example of a mixture?

Multiple things are mixed together, but each part keeps its own identity.

Is this matter or not matter: a pencil

matter

Is this matter or not matter: sound

not matter

Is this matter or not matter: light

not matter

Is this matter or not matter: air

Matter

What scientific tool would you use to measure weight?

A balance

What scientific tool would you used to measure length?

A ruler or meter stick

Name one way to measure volume.

Measure and multiply length x width x height OR use a graduated cylinder to measure by displacement

Which state of matter has the particles with the most energy?

Gas

Which state of matter has the slowest particles?

Solid

Mineral water is water that has different minerals dissolved in it. When a glass of mineral water is left out for a few days, crystals start to form on the glass. How many new substances are formed?

None - the crystals are the solid minerals separating from the liquid.

When two clear liquids are mixed a yellow solid appears at the bottom. How many new substances were formed?

One

What does the law of conservation of matter say? Explain what it means.

Matter cannot be created or destroyed. It can only change from one form to another.

A stick of butter weighs 500 g. What will happen to the mass of the butter when it melts?

The mass will stay the same.

Is air matter? Explain your answer.

Yes - Air is matter because it takes up space and has mass.

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