8th Grade Science Review V1

Front

What is the primary benefit of space research and exploration?

Back

It contributes to generating higher paying jobs, increasing tourism, and developing new products.

Front

What is the corona of the Sun?

Back

The outermost layer of the Sun's atmosphere, visible during a solar eclipse.

Front

How do you calculate the density of an object?

Back

Density = Mass/Volume. For example, a rock with a mass of 70 grams and a volume of 5 mL has a density of 14 g/mL.

Front

What is a galaxy?

Back

A massive system of stars, gas, dust, and dark matter bound together by gravity.

Tags

NGSS.MS-ESS1-2

Front

What effect does temperature have on chemical reactions?

Back

Increasing temperature generally increases the rate of chemical reactions, while decreasing temperature slows them down.

Tags

NGSS.MS-PS3-4

Front

What is the role of gravity in the universe?

Back

Gravity is the force that binds galaxies, stars, and planets together.

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Front

What happens to a glow stick when placed in a freezer?

Back

The rate of the chemical reaction slows down, resulting in less light being produced.

Tags

NGSS.MS-PS1-4

Front

What is the significance of the Sun's corona?

Back

It plays a crucial role in solar phenomena and is important for understanding solar wind and space weather.

Front

What is the formula for density?

Back

Density = Mass/Volume.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.