What is mass?

TRUE or FALSE? An crystalline solid has a distinct melting point

A pot of water boiling at 100 o C is an example of… None of the above Nuclear energy Chemical energy Potential energy Kinetic energy

volume density mass kinetic potential Energy that is stored; in position Amount of matter in object Amount of space matter occupies How tightly packed matter is Energy of motion Match the following.

What is gained when a liquid turns to a gas?

TRUE or FALSE? A solid turning into a liquid is a chemical change.

Which can be used to describe an atom? It is in constant motion It takes up space The basic particle from which all matter is made It has mass All of the above

TRUE or FALSE? An exothermic reaction releases energy

Describe the properties of a solid

What is the difference between chemical change and physical change? Chemical: new substance(s) created; breaks down material—fizzing, bubbling, explosion, color change… Physical: the substance remains the same, just changes appearance—size, shape, form…

What does the law of conservation of mass state?

TRUE or FALSE? Density does not change, regardless of how much of a material you have.

TRUE or FALSE? A liquid’s resistance to flow is viscosity.

This is made of two or more substances in the same place, but not chemically combined. Matter Element Compound Molecule Mixture

A change in size, shape, or phase of matter is an example of chemical change or physical change.

TRUE or FALSE? All matter is made of different arrangements of approximately 100 different atoms

What is surface tension?

TRUE or FALSE? A gas is also a fluid.

Compare the particle arrangements in a solid, liquid, and a gas Solid: tightly packed, fixed Liquid: free to move, but confined to a certain volume Gas: spread apart, fill all available space

This is described as the force of outward push divided by the area of the walls of the container. Motion Temperature Surface tension Viscosity Pressure

Element Substance Matter Molecule Density How tightly packed matter is in an object Anything that has mass and volume Substance that cannot be broken down Single kind of matter that is pure Group of 2 or more atoms held together by chemical bond Match the following:

TRUE or FALSE? Honey is an example of a heterogeneous mixture.

Which of the following statements about mass is correct Mass changes in a phase change Mass changes with altitude Mass changes with gravity Mass changes with location Mass remains constant

TRUE or FALSE? If a material has a density greater than 1.00g/ml, it will sink.

What is chemistry?

Shaving my head is an example of what type of change?

Way to go! A little more studying and you are all set!