Science Exam 11/2/18

Question 1

What is the best evidence that earth rotates on its axis

Answer 1

Because it’s a focult pendulum

Question 2

What is the color and type of rock that forms oceanic crust at mid ocean ridges

Answer 2

Dark, basalt

Question 3

How can you determine the steepness of a slope

Answer 3

By calculating the gradient

Question 4

Around which star do the other circumpolar stars rotate?

Answer 4

Polaris

Question 5

What is the difference between physical and chemical weathering? When acid is placed in a mineral and it bubbles, what type of weathering is occurring?

Answer 5

Physical weathering is when rocks and other landforms are broken down by physical factors in the environment. Chemical weathering is when there are changes in the chemical composition of a rock or mineral from exposure to the environment.

Chemical

Question 6

Name 2 rocks that will bubble in the presence of acid

Answer 6

Dolomite, calcite

Question 7

What property of gneiss prevents it from weathering?

Answer 7

It’s mineral composition

Question 8

pieces of bedrock material that are broken from a cliff and deposited by a landslide at the base of a cliff. Is the deposit unsorted or sorted? is the deposit rounded or angular?

Answer 8

Unsorted bc it all fell at once. angular bc it broke of a rock and it only becomes rounded if it rolls

Question 9

geographically on earth, where is Polaris directly overhead?

Answer 9

the northpole

Question 10

describe earths approximate rates of rotation and rveolution

Answer 10

15 degrees per hr, 1 degrees per day

Question 11

if phylitte is exposed to greater heat and pressure during metamorphism, it will form…

Answer 11

schist

Question 12

which type of electromagnetic radiation has the longest wavelength?

Answer 12

infared