Sedimentary Rocks
What is the third step in the formation of sedimentary rocks?
deposition
Light always travels in _______.
a straight line
Which one allows energy to pass through? Open or closed circuit?
closed
deltas
What is the attraction between all objects with mass?
gravity
What three things cause weathering?
wind, water, ice
When light hits a surface, it _________________.
reflects
A ___________ circuit has several different pathways to the energy source.
parallel
What are large rivers or layers of slow-moving ice?
glaciers
What happens if a push on one side is equal to a push on the other side of an object?
What is it called when sediments are MOVED from one place to another?
Erosion
What causes the colors we see?
Different amounts of light being absorbed
A battery is one type of ______________ for a circuit.
power source
What kind of valleys do glaciers create?
U-shaped valleys
An object at rest, _______________.
stays at rest until something moves it
Does the formation of sedimentary rock require heat, pressure, or both?
ONLY PRESSURE
When light goes into water or through a lens, it _______, or bends.
refracts
To make a circuit work, all switches must be _______.
down/closed
What forces of erosion cause canyons?
water, wind, and ice
Give three examples of gravity at work.
answers may vary
What causes cementation?
Minerals in water that seeps into layers of sediment
What happens when light goes though a prism?
It refracts and breaks into different colors of light.
What is the best way to see if a circuit will light up a bulb?
Use your finger or a pencil to trace the circuit.
What forms V-shaped valleys?
rivers and streams (water)
What scientist discovered many of the laws about gravity?
Sir Isaac Newton