Earth Science Practice Test

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1.
1 point
Chemical reactions are described in a ________________.
2.
1 point
Geology is the study of the universe.
3.
1 point
The symbol of Potassium is Ag.
4.
1 point
The crust is the part of Earth where we live.
5.
1 point
Earth's shape is a perfect sphere.
6.
1 point
____________ are organisms that make their own food.
7.
1 point
Color is a chemical property of a mineral.
8.
1 point
_________ is the hardest mineral.
9.
1 point
Photosynthesis is the process in which plants capture solar energy to make sugar.
10.
1 point
___________ is located at the center of the Earth and is the innermost structure of our planet.
11.
1 point
____________ is considered to be Earth's twin.
12.
1 point
What Earth Science branch studies global oceans?
13.
1 point
How many kilograms are the following number of pounds: 120 pounds.
14.
1 point
There is no gravity in the moon.
15.
1 point
Is the following equation balanced?

2H2 + O2 --> 2H2O
16.
1 point
___________ is the softest mineral.
17.
1 point
Beneath the crust is the _____________.
18.
1 point
Halfway between the poles, a circle called the equator divides Earth into the Northern and Southern Hemispheres.
19.
1 point
Hydrogen's atomic number is 1.
20.
1 point
____________ is a combination of two or more substances that are not chemically combined.
21.
1 point
What is the difference between a proton and a neutron?
22.
1 point
Halfway between the poles, a circle called the prime meridian that divides Earth into the Northern and Southern Hemispheres.
23.
1 point
___________ is the study of the "solid" Earth.
24.
1 point
The smallest unit that can exist by itself and retain all its chemical properties is a _________.
25.
1 point
The ________ ________ is the way scientists organize chemical elements.