EOG Science

the genetic code for the gene (YY, Yy, yy)

• phenotype

• genotype

• allele

Is hammering wood together to build a house a chemical or physical change?

• chemical

• physical

In the current model of the Periodic Table of Elements, the elements have been placed in groups or families. Why have the elements been organized in such a way?

• Elements in each group have similar densities.

• Elements in each group all have similar boiling points.

• Elements in each group have similar physical and chemical properties.

• Elements in each group have the ability to chemically react with the other elements within that group.

A science teacher mixes calcium chloride and vinegar in a test tube. He passes the test tube around for his students to feel. The students notice that the test tube is hot. The science teacher asks the students to decide if the mixing of the two chemicals involved a physical or chemical change. He also asks the students to justify their answer. Which student gave the correct response?

• Student 1: The change was physical because a temperature change occurred.

• Student 2. The change was chemical because a temperature change occurred.

• Student 3: The change was physical because the two chemicals mixed.

• Student 4: The change was chemical because the two chemicals mixed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How would excessive increases in nitrate and phosphorus concentration affect freshwater systems?

• It would cause excessive algal blooms.

• It would cause increased dissolved oxygen.

• It would cause increased water clarity.

• It would cause extremely cold water.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

This diagram shows a cross section of land that has not been overturned and includes a fossil. What can be concluded about the age of the fossil?

• It is younger than the shale.

• It is older than the shale.

• It is older than the sandstone.

• It is younger than the sandstone.

Tags

NGSS.MS-ESS1-4

An index fossil is found in the same sedimentary layer as another fossil. What would this reveal about the other fossil?

• The relative age of the fossil.

• That the two fossils are from the same species.

• The fossil is older than the index fossil.

• The fossil is younger than the index fossil.

The shaded areas of this diagram represent where fossils of a land- dwelling animal were found on the continents of South America and Africa. What does this evidence suggest?

• The animals swam from one continent to the other

• The two continents were once connected by a land bridge.

• The animals developed on the two continents at the same time.

• The two continents were once joined as part of a larger continent.

Tags

NGSS.MS-ESS2-3

Differences in the homologous structures shown below, supports the hypothesis that these organisms:

• are member of the same species

• live in the same environment

• have similar ancestors but adapted to live in different environments

• all contain the same genetic information.

Tags

NGSS.MS-LS4-2

Darwin observed many birds that had many different beak shapes and sizes. There were few beaks that were similar because of…

• competition for the same type of food

• competition for a specific concentration of oxygen in the atmosphere

• the presence of an excessive number of autotrophs

• the presence of a disease that attacks birds with similar beak

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS4-4