Science finals 🔚🎬

Question 1

Physical properties of minerals such as color, hardness, luster, and streak are used to determine what about a mineral?

Answer 1

Identity

Question 2

One test of a mineral is the streak test in which what property is determined?

Answer 2

The color of powder left behind when the mineral is rubbed on a surface

Question 3

Which of the following best describes luster?

Answer 3

The way light reflects off an object

Question 4

Scientists test for the hardness of a mineral by doing which of the following?

Answer 4

Scratching the mineral against other substances of known hardness

Question 5

Rocks are classified by…

Answer 5

How they are formed

Question 6

What is the primary process that turns sediments into sedimentary rocks?

Answer 6

Upper layers of sediment, pressing down on lower layers of deposited sediment

Question 7

In order for a rock to be classified as igneous, what must have happened during its formation?

Answer 7

Liquid rock changing its physical state

Question 8

Geologists might recognize a metamorphic rock by distorted, wavy layers because they were caused by…

Answer 8

Pressure and heat

Question 9

Sedimentary rocks can have layers of different colors. This occurs when…

Answer 9

different minerals are deposited at different times.

Question 10

Which layer of Earth is the thinnest?

Answer 10

Crust

Question 11

Which layer of Earth do scientists believe is most likely made of solid metals?

Answer 11

Inner core

Question 12

Which of the following would be an accurate feature to include in a model of Earth?

Answer 12

A liquid outer core below the mantle

Question 13

Which of the following best describes Earth’s asthenosphere?

Answer 13

Dense rock that moves the crust

Question 14

Which layer of Earth is broken up into giant moving plates?

Answer 14

Lithosphere

Question 15

Where two tectonic plates converge and move toward each other, which of the following is likely to result?

Answer 15

Mountain range

Question 16

When two continental plates diverge, there is a valley in between these two plates that forms as the continental crust widens. What geological event is a result of this interaction?

Answer 16

Volcanos 🌋

Question 17

Density is calculated by dividing the mass of a substance by its…

Answer 17

Volume

Question 18

All of the following are evidence of a chemical change EXCEPT

Answer 18

Change in state of matter

Question 19

While elements and compounds are related, they are different. Unlike elements, compounds -

Answer 19

are made of at least two types of matter

Question 20

Be3Al2(SiO3)6

How many different elements

Answer 20

4

Question 21

Which of the following is the best description of an element?

Answer 21

A substance that cannot be broken down into simpler substances

Question 22

What physical properties are used to classify elements as metals, non-metals, or metalloids?

Answer 22

Luster, conductivity, malleability

Question 23

Thermal energy transfer by conduction is accomplished when heat moves from a warmer object to a cooler one by –

Answer 23

coming in direct physical contact with it.

Question 24

Which of the following is an example of heat transfer through radiation?

Answer 24

Beach sand getting warmed by the Sun

Question 25

Which of these is an example of light energy being transformed into chemical energy?

Answer 25

A plant makes sugar in the sunlight

Question 26

If a community is choosing between solar and wind energy, which advantage would make wind energy the better option?

Answer 26

Wind energy is less expensive, and it is limitless

Question 27

One disadvantage to using coal to produce electricity is that coal -

Answer 27

is not environmentally friendly.

Question 28

Natural gas is a fossil fuel formed within oil fields and coal beds. What is an advantage of using natural gas as an alternative form of energy?

Answer 28

It releases relatively low emissions compared to other fossil fuels

Question 29

Why is it better to obtain energy from natural gas instead of coal and oil? Natural gas –

Answer 29

produces fewer greenhouse gases.

Question 30

One advantage of using biomass as a renewable energy source is that biomass –

Answer 30

decreases waste products from municipal and agricultural sources.

Question 31

What would be a potential problem when collecting wind energy?

Answer 31

Wind is unpredictable

Question 32

Human beings share some characteristics with all other organisms. Humans, and all other living things…

Answer 32

are made up of one or more cells.

Question 33

At what level of organization in an ecosystem is an individual plant or animal?

Answer 33

Organism

Question 34

Community is the level of organization which is best described as all -

Answer 34

living things, regardless of species, in an area.

Question 35

Which of the following lists includes only abiotic factors?

Answer 35

Rainfall amounts, average daily temperature, minerals in soil

Question 36

What is abiotic?

Answer 36

Non living things

Question 37

Which of the following describes a change in a biotic factor that will be a disadvantage for a certain species of fish living around coral reefs in shallow seas?

Answer 37

The number of predators, such as sharks, increases dramatically