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Matter Measuring Matter Mixtures and Solutions Physical and Chemical Changes Potpourri 10 Point 10 Point 10 Point 10 Point 10 Point 20 Points 20 Points 20 Points 20 Points 20 Points 30 Points 30 Points 30 Points 30 Points 30 Points 40 Points 40 Points 40 Points 40 Points 40 Points 50 Points 50 Points 50 Points 50 Points 50 Points

Matter is anything that has _____ and takes up _____.

Mass;space

The amount of space an object takes up is its _________.

volume

Besides mass and volume, name 3 other properties of matter.

Color, texture, hardness, temperature, magnetism, density…

BONUS* Will it sink or float? Bob finds the mass and the volume of an object. The mass is 20 g and the volume is 5 mL. What is the density of the object? BONUS* Will it sink or float?

4 g/mL ; It will sink.

Atoms are made up of three parts. What are they?

Proton, neutron, and electron.

What tool is used to find an object’s mass?

A balance.

Bob takes a mineral and scratches it across a surface Bob takes a mineral and scratches it across a surface. What is Bob probably trying to find?

The streak.

Bob pours 60 mL of water into a graduated cylinder Bob pours 60 mL of water into a graduated cylinder. He then puts in an object and the water level rises to 115 mL. What is the volume of the object?

55 mL

Bob wants to find the volume of a brick Bob wants to find the volume of a brick. He measures the brick and finds it is 20 cm by 5 cm by 5 cm. What is the brick’s volume?

500 cubic cm

How is mass different from weight?

Weight is a measure of gravity’s pull on an object Weight is a measure of gravity’s pull on an object. It changes based on gravity. Mass is how much matter is in an object and never changes.

Salt and water combine to form a solution. True or False? Salt and water combine to form a solution.

True

Bob puts two liquids in a beaker. Liquid A sits on top of liquid B Bob puts two liquids in a beaker. Liquid A sits on top of liquid B. Did Bob make a mixture or a solution?

Mixture

Bob puts a small amount of solute in a solvent Bob puts a small amount of solute in a solvent. Which would best describe Bob’s mixture: Dilute, saturated, or concentrated?

Dilute

Bob mixes cheerios with raisins Bob mixes cheerios with raisins. Name three properties Bob can use to separate the mixture.

Color, size, shape, texture

There are 3 things that affect the speed of dissolving There are 3 things that affect the speed of dissolving. Name two of those things.

Stirring, temperature of solvent, and size of the solute.

Bob puts gold in high temperatures and it melts Bob puts gold in high temperatures and it melts. Is this a physical change or a chemical change?

(change in state of matter) Physical (change in state of matter)

What causes matter to change state?

Temperature (adding heat or taking away heat)

How does temperature affect a chemical change?

Higher temperatures speed up a chemical change.

There are many indicators that a chemical change has occurred; name three of indicators.

Gas produced (bubbles), temperature change, color change, sound produced, light produced, or a odor is produced.

Explain the difference between a chemical and physical change.

Chemical changes create new substances and are permanent Chemical changes create new substances and are permanent. Physical changes do not create new substances and can be reversed.

In which state of matter do molecules move rapidly and spread out?

Gas

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

Solid

Bob leaves his metal wagon outside Bob leaves his metal wagon outside. Over time the metal changes to a orange color. Is this a physical or chemical change?

Chemical (color change – rust)

Bob’s friend, Bobby, looks through a microscope and says that an atom of carbon has 6 protons. What is wrong with this statement?

Atoms are far too small to be seen with a microscope.

Bob is describing some matter to his friend Bob is describing some matter to his friend. He says the matter changes states at 0 and 100 degrees. It is made of one oxygen molecule and two hydrogen molecules. What is the matter Bob is describing?

water

Final Jeopardy Make your wager

Final Answer

Final Question