8th Grade Science EOC review-Part 2

The table shows the physical properties of bleach, oven cleaner, vinegar, and carpet cleaner. Which physical property best categorizes vinegar in a separate group from the oven cleaner?

• solubility in water

• color of solution

• melting point

• boiling point

Tags

NGSS.MS-PS1-2

Look at the organisms pictured here. How are these organisms classified?

• different domain, same kingdom

• different domain, different kingdom

• same domain, same kingdom

• same domain, different kingdom

Tags

NGSS.MS-LS4-2

You are part of a class that is investigating acceleration. You are responsible for designing and experiment to determine how mass affects the acceleration of different objects. All of the groups in the class will use your plan to investigate different objects and then the class will combine all of the results. Which of the following describes the most important part of your job?

• you need to create the same data tables and graphs for all the groups so that the class can easliy compare the result

• you need to make sure each group collects the same data and reaches the same conclusion

• you need the class to write as many scientific questions about acceleration as possible

• you need to plan a single procedure for all groups to follow

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-2

Ralph decided to dive to the movies in his car. After he stopped at the traffic light, he accelerated onto the highway and then drove at a constant spee to 60 mph. Which of the following graphs BEST represents this information?

• 
• 
• 
• 

Tags

NGSS.MS-PS3-1

Different cell organelles have different functions. Which type of cells would most likely have the most mitochondria.

• cells in the stomach lining that make digestive enzymes

• nerve cells that transmit signals to the brain stem

• muscle cells in the leg muscles of a runner

• red blood cells that transport oxygen

Tags

NGSS.MS-LS1-2

If a geologist thinks that they have uncovered a location that contains ancient rocks, which of the following methods would be the BEST way to measure the age of rocks?

• measure the amount of weathering present on the surface of the rocks

• measure the amount of each radioactive element present in the rocks

• measure the percentage of each mineral that makes up the rocks

• measure the thickness of rock layers that cover the rocks

Tags

NGSS.HS-ESS1-5

Use the facts in the picture to answer the question: Which evidence would MOST likely weaken the researcher's conclusion that this was a new species of snake?

• another very similar snake is discovered in a different county

• a snake expert disputes the characteristics identified by the researcher

• another unknown snake is discovered in Laos

• the researcher finds four other identical snakes in Laos

There are eight planets in our solar system. Those planets orbit the sun at varying speeds and distances. Venus and Mercury are the only planets in our solar system that do not have moons. Which of the following BEST explains why Venus and Mercury do not have moons?

• Venus and Mercury have no gravity

• Venus and Mercury are too hot to keep moons in orbit

• Venus and Mercury travel too quickly around the Sun to attract moons

• Venus and Mercury are too close to the Sun's gravity at attract moons

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A population is composed of individual organisms. Which of the following is an example of genetic variation within a population of birds?

• several organisms with broken wings

• individual organisms with broken legs

• organisms with different sized beaks

• population of identical bird beaks

Tags

NGSS.MS-LS4-4

Rust is the process of iron combining with oxygen. Why is the formation of rust considered a chemical change?

• rust has greater chemical reactivity than oxygen

• rust has properties that differ from both iron and oxygen

• rust has the same chemical composition as iron

• rust has a very high melting point

Tags

NGSS.MS-PS1-2