Which is usually true about metals?

Metals conduct electricity more easily than nonmeals

Metals melt at a lower temperatures than any other elements

metals always have their atoms arranged into crystals

metals do not combine easily with nonmetals

Which action would result in a chemical change?

crumpling several sheets of paper

pounding a nail into a piece of wood

All of the substances on the periodic table are classified as elements because they

cannot be broken down into other substances

cannot be dissolved in water or other liquids

Which statement is true about the electrical properties of metals?

metals are good electrical conductors

metals have high electrical resistance

lightweight metals are the best conductors

metals an plastics are both good insulators

A difference between physical change an chemical change is that

different kinds of molecules are present after a chemical change but not a physical change

a chemical change involves energy while physical change does not

physical change involves energy while chemical change does not

different kinds of molecules are present after a physical change but not a chemical change

Silver is white metal that is an excellent conductor of heat ad electricity. The density of silver is 10.49 g/cm3. Silver does not react with water but does not react with nitric acid. Silver tarnishes when exposed to air. A physical property of silver is

the density of silver is 10.49 g/ cm3

silver does not react with water

silver tarnishes when exposed to air

Each element in the periodic table is assigned an atomic number. This number is the same as...

the number of protons in the atom's nucleus

the number of electrons in the atom's nucleus

the number of neutrons in the atom's nucleus

As you move across the periodic table from left to right within a period, the elements...

change from metals to nonmetals

Which of the following is an example of kinetic energy?

firewood stacked in a fireplace

Which represents kinetic energy?

a salmon leaping up a waterfall

a bear standing in a field of berries

a salmon resting in still water

a bear holding a salmon it has caught

When electrical energy is "used" by an electric light, what really happens to the energy

it is given off as other forms of energy

In an amusement park a moving bumper car (car 1) collides with a bumper car at rest (car 2) and, after the collision, both cars move. If momentum is conserved, which statement is correct?

The momentum of car 1 decreases and the momentum of car 2 increases

The momentum of car 1 increases and the momentum of car 2 decreases

The total momentum of both cars increase

The total momentum of both cars decrease

Which situation is an example of increasing potential energy?

a bicyclist stopping at a stop sign

How do microwaves cook food?

by using elctromagnetic waves and the process of radiation

by using hot air currents through the process of convection

by using the movement of charged particles through the process of induction

by using direct contact of moving particles through the process of conduction

What must happen to an object in order to accelerate it?

its frictional coefficient must be reduced

This graph shows the velocity of a car. Which statement BEST explains how the car is moving?

velocity is increasing, so the car is accelerating

velocity is decreasing, so the car is accelerating

velocity is increasing, so the car is not accelerating

velocity is decreasing, so the car is not accelerating

Jeff was riding in a car. Which change demonstrates the GREATEST effort of inertia?

the car changes into another lane

the car runs out of gas and rolls to a stop

Georgia Milestones Science

Authored by Charles Martinez

Science

KG - University

NGSS covered

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215 questions

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

Evidence of a chemical change would be a

melting popsicle

spinning top

spilled bucket of water

rusting car fender

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Moisture that collects on the outside of a cold glass results from the process of

evaporation

condensation

sublimation

vaporization

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A hot air balloon rises because

molecules become lighter when heated

molecules move faster and farther apart when heated

molecules are less attracted by gravity when heated

molecules become charged and repel each other when heated

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The solid, liquid, and gaseous states of water differ from each other in

the mass of the individual atoms

the size of he individual atoms

the net electrical charge of the individual molecules

the average speed of movement of the individual molecules

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Compare and contrast mixtures and compounds. Which statement is true about mixtures and compounds?

Both mixtures and compounds are the same throughout

Mixtures and compounds are made of two or more elements in a definite proportion

mixtures must be separated by chemical methods and compounds by physical methods

mixtures contain two or more elements physically combined and compounds contain two or more elements chemically combined

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which symbolizes a molecule of a compound?

NaCi

Tags

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

A different chemical substance is formed when

piece of cloth is cut

cup breaks

candle burns

piece of chalk breaks

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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Georgia Milestones Science

Evidence of a chemical change would be a

Moisture that collects on the outside of a cold glass results from the process of

A hot air balloon rises because

The solid, liquid, and gaseous states of water differ from each other in

Compare and contrast mixtures and compounds. Which statement is true about mixtures and compounds?

Which symbolizes a molecule of a compound?

A different chemical substance is formed when

Carbon dioxide CO2 is...

A chemical change combining two elements results in...

All plant and animal life on Earth contains what element?

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