Science Interim 1 Review

Most people on Earth get their drinking water from ________.

Most of the water on earth is located in ________.

Smaller streams and rivers that feed larger streams and rivers are called _________.

Sea-floor rock records......

________ dissolve in solvents.

After 10,000 years, how may half-lives has a fossil sample gone through that has a half-life of 5000 years?

Crust is destroyed at a _______ boundary.

 Most of the fresh water on Earth's surface is:

Magnetic reversals help prove that .......

Oceanic crust (rock) that is found near a deep ocean trench is ________ than rock found near the mid-ocean ridge.

The law of superposition states the older rocks and fossils are found at the _____ of sedimentary rock layers.

Which layer of the earth is the least dense?

The most dense layer of the Earth is the ______.

Most freshwater on Earth can be found in ___________.

New crust forms along a.....

_____% of water on earth is saltwater.

Scientists study ______ to learn about Earth's ancient atmosphere.

New crust forms at a _______ boundary.

Ocean water will become less salty if ........

Plates scrape past each other at _____ boundaries.

Scientists thought Alfred Wegener was crazy because.......

 Which water cycle process is hail?

What is the best way to accurately date a rock or fossil?

When water freezes, the density decreases. Which of the following explains why?

Humans first appeared in the _____ Era.

Which would you use to find the exact age of a rock or fossil?

Earth is a ______ system, that is why there is a water cycle.

A material that has a mass of 10 grams and a volume of 5 cm3 will have a density of _____ and will _____ in water.

If you move from the ocean into an estuary, ____________.

Fossils can only form if .......

An example of a trace fossil would be a _______.

Crust at a mid-ocean ridge is ______ than crust at an ocean trench.

Which describes a river basin?

Microorganisms near a hydrothermal vent on the ocean floor make energy through the process of _______.

The first life appeared on Earth during the _______ Era.