A. What is matter? Matter is anything that has mass and takes up space.

A. What is matter?

Matter is anything that has mass and takes up space.

B. Why is air matter but light is not?

Air has mass and takes up space, while light does not.

C. What are physical properties?

Physical Properties of a substance are properties that can be observed without changing the identity of the substance.

D. What is the difference between weight and mass?

Mass is the amount of matter in an object. Mass is measured in grams using a balance scale. Mass is constant and does not change when your location changes. Weight is the measurement of the pull of gravity on an object. Weight depends on gravity, which can change depending on where the object is located. Weight is measured in Newtons using a spring scale.

E. What is volume?

Volume is the amount of space that matter takes up. The volume of liquid is measured in milliliters using a graduated cylinder. Solids are measured with a ruler in cubic centimeters (cm3) using the formula length x width x height. 1 mL = 1 cm3

F. Example of Conductivity:

Aluminum and copper are good conductors. Glass, rubber, and plastic restrict the flow of heat and electricity. They are poor conductors.

G. Example of : Malleability:

Gold is very malleable metal it is easy to shape.

H. Example of Ductility:

Metals are ductile. Copper is used to produce wires for conducting electricity.

I. Example of Hardness:

The harder the material is, the more it resists scratching. Diamonds are the hardest substance.

J. How do the physical properties of

iron and copper compare?

Iron is attracted to magnets, but copper is not.

A. hardness

B. odor

C. beauty

D. color

6. Which is not a physical property used to identify substances? Pg 57

A. spring scale

B. balance

C. graduated cylinder

D. beaker

7. Which tool would be used to measure the mass of an object? pg 57

K. What is density?

Density is the measurement of how much mass fits within a certain volume. Density is measured in grams per cubic centimeter (g/cm3)

L. How does density affect an object’s

ability to float?

An object floats when its density is less than that of the liquid in which it is place.

M. A sheet of aluminum foil is ripped into two smaller

pieces. How do the densities of the smaller pieces compare to the density of the original piece?

They are the same.

A. color

B. weight

C. volume

D. length

6. A student knows the mass of an object. What other variable does the student need to know to calculate the object’s density? Pg 67

A. weight

B. volume

C. mass

D. density

7. Which would be most useful for identifying an unknown liquid? Pg 67

N. What are states of matter?

A form that matter can take. The 3 states of matter are solid, liquid, and gas.

O.   solid liquid gas

shapevolume

movementattractive forces

O.   solid liquid gas

shape definite No definite No definite

volume definite definite No definite

movement Fixed vibrating

Sliding past one

another

Fast and far apart

attractive forces

strong Weaker than solid

Very weak

P. What is temperature?

Temperature is a measure of the average kinetic energy of the particles in a material.

Q. Explain what happens to water when

you add or remove energy.

If an ice cube absorbs enough energy, it can change into liquid water. If enough energy is added to the liquid water, it can change into a gas. When energy is removed from water vapor it can change into a liquid. Liquid water that loses energy can change into ice.

R. What is the following temperature for WATER for each

Temperature Energy Celsius Fahrenheittemperature increasing

Boiling point

temperature decreasing

Condensation point

temperature increasing

Melting point

temperature decreasing

Freezing point

R. What is the following temperature for WATER for each

Temperature Energy Celsius Fahrenheittemperature increasing

Boiling point 1000 C 2120 F

temperature decreasing

Condensation point 1000 C 2120 F

temperature increasing

Melting point 00 C 320 F

temperature decreasing

Freezing point 00 C 320 F

S) Fill in the table below explaining the change in state

Change of state state statevaporization

boilingevaporationcondensation

meltingfreezing

sublimation

S) Fill in the table below explaining the change in state

Change of state state statevaporization liquid gas

boiling liquid gasevaporation liquid gascondensation Gas liquid

melting solid liquidfreezing liquid solid

sublimation solid gas

A. its mass increases

B. Wits particles move more slowly

C. its particles move faster

D. its particles stop moving

6. Which happens to an object as its temperature increases? Pg 83

A. vaporization

B. condensation

C. boiling

D. melting

7. During which change of state do the particles in a material become closer? pg 83

T. What are chemical properties?

The ability of a substance to combine with or change into one or more new substances.

U. What are some examples of flammable/combustible substances?

Paper, wood, hydrogen, gasoline

V. What happens when potassium is placed in water? (figure 24)

It reacts violently and often produces fire.

W. A substance rusts when exposed to

water. Is this a chemical or a physical

property? Explain how you know

A chemical property is the ability of a substance to combine with another substance to form a new substance. Since rust forms when exposed to water, it is a chemical property of the substance.

A. density

B. mass

C. yellow powder

D. reacts with water

6. Which is a chemical property of a substance? Pg 93

A. fragile

B. flammable

C. handle with care

D. shake well

7. Which warning refers to a chemical property of the material? pg 83

X. What is a physical change?

A physical change alters the form of an object without changing what type of matter it is.

Y. What are some examples of physical

changes?

Change in size and shape, sharpening a pencil, tearing a piece of paper, filtering coffee grounds from water, breaking glass, and cutting fruit

Z. What do all physical changes have in common?

All physical changes alter the form of an object without changing what type of matter it is.

AA. What is a chemical change?

A chemical change is a change in matter in which the substances that make up the matter change into other substances. A new substance is made with new properties.

BB. What are some examples of chemical changes?

Making brownies, mixing baking soda & vinegar

CC. What chemical changes affect your life?

Cooking food, burning things to produce heat, or rusting

DD. What are some signs that a chemical change might have occurred?

Color change, the release or absorption of energy, the formation of a gas, the formation of a precipitate

EE. What sign tells you that a chemical change takes place when you fry an

egg?

The egg white changes from clear to white

FF. What is a precipitate?

Some chemical changes produce a precipitate which is a solid that forms when two liquids combine The egg white changes from clear to white

A. water freezes and forms ice

B. a puddle evaporates

C. iron rusts

D. a soda can is crushed

6. Which is an example of a chemical change? Pg 105

A. formation of a yellow precipitate

B. formation of bubbles

C. light is given off

D. a color change

7. Suppose you mix baking soda and vinegar.

What signs might indicate that a chemical change is occurring? pg 105

GG. What happens to atoms during a

chemical reaction?

The atoms break their bonds with other atoms and form new bonds with new atoms.

HH. Could oxygen be produced from a

chemical reaction if none of the reactants contained oxygen atoms? Explain.

No; atoms do not change their identity during a chemical reaction. They just change their associations with other atoms. The atoms rearrange to form a new substance.

II. What forms when atoms attach to other

atoms?

Chemical bonds are formed when atoms attach to other atoms.

JJ. What are chemical equations?

Shorthand for a chemical reaction. A chemical equation helps scientists study a chemical reaction. It tells scientists at a glance the reactants, the products, and the proportions of each substance present in a chemical reaction. Chemical bonds are formed when atoms attach to other atoms.

KK. In a chemical equation, what appears to

the left of the arrow?

In a chemical equation, the reactants are written to the left of the arrow.

•To the right of the arrow?

Products are written to the right of the arrow in a chemical equation.

LL. How many carbon and oxygen atoms does a

carbon dioxide molecule have? (CO2)

There are one carbon atom and two oxygen atoms.

MM. What is the law of conservation of

mass?

Matter cannot be created or destroyed

NN. Why must the total mass of the

products equal the total mass of the reactants in a chemical reaction?

Because matter cannot be created or destroyed

OO. If 1 g of hydrogen combines with 16 g

of oxygen, what will be the mass of the products?

17 grams

A. Substances change state

B. Atoms rearrange to form matter with different properties

C. The form of an object changes, but its type of matter stays the same.

D. Solids are separated using filters

6. Which best describes a chemical change? Pg 115

A. breaking the shells

B. heating the eggs

C. mixing the egg yolks and the egg whites together

D. putting pepper onto the cooked eggs

7. What causes a chemical reaction when you prepare scrambled eggs?

? pg 115