Fossils
What physical evidence do we find of past life on Earth?
Fossils
What is the definition for rotation?
Orbiting on axis, and spinning in a circle.
Define transparent
when light can completely pass through an object
What are the 3 states of matter?
Solid, lIquid, & Gas
What is the main source of the Water Cycle?
the Sun
True or False: All fossils come from dinosaurs.
False
What is the definition of revolution?
to orbit around an object
Reflection or Refraction? Looking onto the lake and sees yourself.
Reflection
Conductor or Insulator Doesn’t let energy flow through?
Insulator
As the temperature rises, will water evaporate slower or faster?
faster
What evidence would suggest a desert was once an ocean?
Marine fossils and shells
What causes the length of shadows to change over the course of the day?
Earth's rotation on its axis
Define translucent
when some light can pass through and object
What are 3 ways to classify matter?
Magnetism, Density, Solubilty, conductor, state of matter.
Define condensation
Change in state of matter from a gas to a liquid when water vapor cools.
Where would you find the oldest fossils located in sedimentary rock?
at the bottom
How long does it take the earth orbit around the sun?
1 year or 365.25 days
Reflection or Refraction? Pencil looks to be broken in water but really is not.
Refraction
Why does oil float on water?
oil is less dense than water
What is dew and how is it formed?
During the day the Sun evaporates water on the earth. At night the water vapor cools and condenses back into water droplets.
Layers of sand and mud pressed together over time
Sedimentary rock
What causes Day/Night cycles? Revolution or Rotation
rotation - roDAYtion
True or False: Light travels in a straight line until it strikes an object or travels from one medium to another.
True
Which of the following objects are more dense than water? Wood Block, Glass Marble, Metal Paper Clip, Plastic Ball, Cork
Metal Paper Clip & Glass Marble
What are the 4 main phases of the water cycle?
evaporation (water vapor), condensation, precipitation