Science Exam 11/2/18 Flashcards
What is the best evidence that earth rotates on its axis
Because it’s a focult pendulum
What is the color and type of rock that forms oceanic crust at mid ocean ridges
How can you determine the steepness of a slope
By calculating the gradient
Around which star do the other circumpolar stars rotate?
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?
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.
Name 2 rocks that will bubble in the presence of acid
What property of gneiss prevents it from weathering?
It’s mineral composition
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?
Unsorted bc it all fell at once. angular bc it broke of a rock and it only becomes rounded if it rolls
geographically on earth, where is Polaris directly overhead?
describe earths approximate rates of rotation and rveolution
15 degrees per hr, 1 degrees per day
if phylitte is exposed to greater heat and pressure during metamorphism, it will form…
which type of electromagnetic radiation has the longest wavelength?