A factor that does NOT change in an experiment is the ____.

A bar graph is used to tell how a fixed quantity is broken into parts.

A baker wants to determine which of two preservatives will be the most effective at improving the shelf life of his bread. Using scientific methods, he would bake some bread with no preservatives as a standard to compare the baker’s results by.

The prefix milli- means ____.

A meter stick is useful for measuring whether a piece of furniture would fit in the trunk of a car.

The prefix kilo- means ____.

Consumers do not have much input into what technology gets developed.

The variable plotted on the horizontal or x-axis is called the ____.

When designing an experiment, the first step is to ____

An idea, event, or object can be represented by a ____ to help people better understand it.

What is the dependent variable in the graph given?

What is the independent variable?

A factor that is manipulated in an experiment to change the dependent variable is the ____.

Use the graph in Figure 1-1 to determine the percent of human blood that is NOT red blood cells.

Another term for technology is ____.

A standard for comparison that helps to ensure that the experimental result is caused by the condition being tested is the ____.

A baker wants to determine which of two preservatives will be the most effective at improving the shelf life of his bread. The amount of flour used in the bread would be an independent variable in this investigation.

Measured in grams and kilograms.

Measured in g/cm3 or g/mL.

Measured in cm3 or mL.

The reason objects will float or sink in water.

How much matter is in an object.

Use the line graph given to determine the object’s speed (m/s) at 5 s?

A measurement standard is defined as ____.

A rule or principle that describes what happens in nature is a ____.

The application of scientific knowledge to help people is ____.

People in developing countries have the same technology needs as those in the United States.

True

A piece of pine wood measures 30 cm long, 6 cm wide, and 3 cm high. The piece of wood has a mass of 270 g. What is the density (g/cm3) of pine wood?

Participating in the political process by voting can help to influence the development of new technology.

Use the graph to determine which horse is running faster. Explain how you determined your answer.

Three hurricanes were reported during the North Atlantic hurricane season of 2009. The numbers reported for the previous five years are as follows: 8 in 2008, 6 in 2007, 5 in 2006, 14 in 2005, and 9 in 2004. Choose the best type of graph to display these data and construct the graph.

How many meters are there in 1865 cm?

Studying the effect of one thing on another in order to test a hypothesis is a(n) ____.

In a graph showing temperature change of a material over time, temperature change is the ____.

The lightbulb is an example of ____.

In an experiment to determine whether the popping of popcorn is affected by the temperature at which it is stored, counting the popped kernels is an example of a(n) ____.

One benefit of the SI system is that it is ____.

A beaker contains 0.32 L of water. What is the volume of this water in milliliters?

A factor in an experiment that changes from the manipulation of the independent variable is the____.

An explanation of an event that is based on repeated observations and experiments is a ____.

From the bar graph given, what is the percent land use in the United States for agriculture and grassland and pasture combined.

Convert the following:

A. 0.05 kg = _______ grams.

B. 800 m = _______ km.

C. 400 cm = _______

A music store manager counted the number of people who came into their store on Tuesday and divided them into groups of people younger than 20, 20 to 40, and older than 40. Which type of graph would be the best to use in order to display the data? Explain your reasoning.

If the scientific method is followed closely and all the evidence supports the hypothesis, it is still possible for someone to find the hypothesis inaccurate.

An object will sink if its density is greater than the density of water.

When the molecules of gases are heated, the average kinetic energy of the molecules increases.

As the volume of a gas decreases, the pressure of the gas will ____ if the temperature remains the same.

When evaporating a liquid, you add heat until the liquid reaches a temperature at which it changes to bubbles of gas below its surface.

Which state of matter is the most common in the universe?

For most substances, the distance between particles is smallest when the substance ____.

Hydraulic machines work by applying ____.

Most matter ____ when heated.

A fluid’s resistance to flow is called ____.

Pascal's principle explains the relationship between density and buoyancy.

Matter in which the particles are free to move in all directions until they have spread evenly throughout their container is a ____.

According to ____, pressure applied to a fluid is transmitted unchanged throughout that fluid.

Increasing temperature decreases a fluid’s viscosity.

The amount of energy needed to change a material from a solid to a liquid is called the heat of____.

Selected:

The idea that matter is made up of small particles that are in constant motion is ____.

The pressure inside the tires is greater after an automobile has been driven for a few hours than the tire pressure at the beginning of the trip.

According to ____, if you decrease the volume of a container of gas and hold the temperature constant, the pressure of the gas will increase.

Pascal's Principle can be applied to ____.

Viscosity is a measure of a fluid's ____.

1. The energy required to change a solid to liquid at its melting point.

2. The process of a solid changing directly to a gas without forming a liquid.

3. All matter is composed of tiny particles which are in constant, random motion.

4. Matter that has enough energy to overcome attractive forces between its particles and within atoms.

5. The amount of energy required for a liquid st its boiling point to become a gas

According to ____, the buoyant force on an object in a fluid is equal to the weight of the fluid displaced by the object.

The melting point is the same temperature as the freezing point for a substance.

Matter in which particles are arranged in a strong, repeating geometric pattern is called an amorphous solid.

Most solids are amorphous.

Matter in which atoms are tightly held in place is a ____.

According to ____, the volume of a gas increases with increasing temperature, as long as pressure does not change.

Increasing ____ raises the boiling point of a liquid.

Archimedes' Principle helps to explain the relationship between ____.

Compared to most substances, water is unusual because it ____ when it goes from the liquid to solid state.

According to ____, as the velocity of a fluid increases, the pressure exerted by the fluid decreases.

Whether an object will sink or float in a fluid is determined by ____.

A gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a ____.

The amount of energy needed to change a material from a liquid to a gas is called the heat of____.

As the temperature of a gas increases, the volume of the gas will ____ if the pressure remains the same.

The most common state of matter in the universe is ____.

Selected:

Particles in a large balloon will hit the balloon more often causing the balloon to expand.

True

The following are examples of chemical properties except ____.

The scattering of light by colloids is called ____.

____ is another name for a homogeneous mixture.

The ability of a match to burn is an example of a chemical change.

The freezing of water is a chemical change.

Which of the following is an example of a chemical change?

composition variable

has mass, takes up space

two or more elements combined

all atoms the same

composition definite

Cleaning tarnished silver is an example for which of the following.

Magnetism easily separates what mixture?

Fog is an example of a ____.

Distillation is a way to separate a mixture using the physical property of boiling point.

Density is an example of a ____.

Three examples of physical change are ____.

A physical property is a characteristic of something that allows it to change to something new.

Homogeneous mixtures include colloids, solutions, and suspensions.

When a log burns in a fire, ____.

When a firecracker explodes, mass is lost.

All of the following are examples of chemical weathering except ____.

Which of the following is an example of a physical change?

Selected:

The law of conservation of mass states that the mass of all substances before a physical change equals the mass of all the substances after the change.

Selected:

When lightning converts oxygen gas, O2, into ozone, O3, it is a physical change.

The loss of beachfront due to erosion of sand by the ocean is an example of physical weathering.

A description of an object based on what you observe with your senses includes physical properties.

Flammability is a physical property.

If a mixture scatters light and does not settle upon standing, it is a suspension.

Smoke is a compound.

The atomic masses of the elements are not whole value numbers because of the existence of quarks.

The atomic masses of the elements are not whole value numbers because of the existence of quarks.

The number of protons in an atom is the mass number. ____________________

A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is ______.

As you move from left to right in a row of the periodic table, metallic properties increase.

As you move from left to right in a row of the periodic table, metallic properties increase.

The atomic number of an atom is the sum of the number of protons and the number of neutrons in the nucleus. ____________________

A chemical symbol represents the ______of an element.

Elements arranged in vertical columns in the periodic table are called periods. ____________________

According to present atomic theory, the location of an electron in an atom is best represented by a probability cloud. __________________

Seven electrons in the outermost energy level is characteristic of a metal. ____________________

Horizontal rows of the periodic table are called ______.

Quarks make up both protons and neutrons. ____________________

Two isotopes of carbon are carbon-12 and carbon-14. These isotopes differ from one another by two protons. ____________________

The region around the nucleus occupied by the electrons is called the negative zone. ____________________

The maximum number of electrons in the second energy level of an atom is 4. ____________________

The symbol for chlorine is Ch. ____________________

The identity of an element is determined by the number of protons. ____________________

Elements having three or fewer electrons in the outer energy level are classified as nonmetals. ____________________

The area around the nucleus where electrons are most likely to be found is called the electronchamber. ____________________

The nucleus of an atom is ______ charged.

Particles of matter that make up protons and neutrons are ______.

Protons are made of neutrons. ____________________

no charge

positive charge

negative charge

A(n) ______ is matter that is composed of one type of atom.

The central core of an atom is called the hub. ____________________

Neutrons have ______ charge.

The smallest piece of an element that still retains the properties of the element is a(n) ______.

The mass of an electron is about equal to the mass of a proton. ____________________

Dot diagrams are used to represent ______.

Elements in groups 3 through 12 are called ______.

Each energy level of an atom has a maximum number of ______ it can hold.

The weighted average of the mass numbers of all the isotopes that occur in nature for a particular element is the average atomic number. ____________________

The chart showing the classifications of elements according to their properties and increasing atomic numbers is called the periodic table. ____________________

Atoms of the same element with different numbers of neutrons are called ______.

Radioactive elements comprise a majority of the ____.

Which of the Group 13 elements is not a metal?

A chemical family whose members exist as reactive diatomic molecules in the gaseous phase is the____.

All ____ except mercury are solids at room temperature.

The appearance of solid metals can be described as ____.

Elements that lie along the stair-step line of the periodic table are ____.

What element in the oxygen group is needed in trace amounts in your diet?

Which of the following is the most abundant metal in the Earth’s crust?

Any element with an atomic number greater than that of uranium is a(n) ____.

Each row in the periodic table ends with a _____.

An allotrope of carbon that is hard and is often used in jewelry is ____.

As shown in Figure 19-1, which metal is found in the largest amount in the human body?

Substances that conduct an electric current only under certain conditions are most likely to be____.

In general, metals are ____.

Aluminum is used to coat other metals, such as steel cans used to store food, to prevent corrosion. ____________________

An allotrope of carbon that is soft and can be used as a lubricant is ____.

Which region contains the halogen family of elements?

Which category of elements have the property of being malleable and ductile?

Which of the following elements is not in the iron triad?

Elements in which the outer electrons are NOT held tightly are most likely to form ____ bonds.

Nonmetals are malleable and ductile. ____________________

When hydrogen reacts with the active metals, it forms a chemical bond by ____.

Which alkaline Earth metal is used to produce bright white in fireworks?

A family of elements that contains the most reactive metals is the ____.

A family of elements that has two electrons in its outer energy level is the ____.

All synthetic elements are ____.