Science EOG Review Game 1

What tends to happen to a population of animals when food is plentiful?

• The animal population increases.

• The animal population becomes extinct.

• The animal population stays the same.

• The animal population decreases.

Which is the best estimate of the melting point of Rubidium (Rb)?

• 25* C

• 40* C

• 75* C

• 184* C

What is a compound

• sodium

• sugar

• nitrogen

• air

This is a chemical reaction for the decomposition of carbonic acid into water and carbon dioxide.

How does this reaction support the Law of Conservation of Mass?

• Several molecules of water are produced.

• The mass of carbon atoms is reduced during the reaction.

• The mass of the atoms in the reactant equals the mass of the atoms in the products.

• The mass of hydrogen atoms is the only thing that remains the same before and after the reaction.

Which supports the theory that some mountains were once at the bottom of an ocean?

• There are underwater mountains on the ocean floor today.

• Freshwater rivers flow to the ocean.

• Fossils of marine organisms are found on the tops of some mountains.

• Both mountains and ocean floors have similar minerals in their rocks.

A geologist identifies the identical index fossils in rock layers from two different areas. Which conclusion is best supported by this discovery?

• The deposition rate of the two rock layers was identical.

• The fossil organism evolved independently in the two separate areas.

• The two rock layers were deposited at approximately the same time.

• The index fossil will also occur in sediment deposited on top of these rock layers.

Which evidence supports the idea that life on Earth has continually evolved?

• evidence from layers of tree rings

• evidence from rock layers, fossils, and ice cores

• evidence gathered from melting glaciers

• evidence that the climate has changed over the past 100 years

Which would most likely increase the genetic variation in a population of organisms?

• increase in diseases

• decrease in diseases

• increase in mutations

• decrease in mutations

Which is the most accurate method scientists use to predict the age of Earth?

• relative dating of rock layers

• radioactive dating of rocks

• comparing the ages of different fossils

• investigating core samples from the Arctic

Which best explains why mammals became dominant after the mass extinction of the dinosaurs?

• They had traits that helped them adapt to environmental changes.

• They were larger than dinosaurs and ate different foods.

• They lived in different areas on Earth than dinosaurs.

• They were able to hibernate for thousands of years.