Science Praxis Prep

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings.

Tags

NGSS.MS-PS3-4

Front

Where does photosynthesis occur in plant cells?

Back

Photosynthesis occurs in the chloroplasts of plant cells, not in the mitochondria.

Tags

NGSS.MS-LS1-6

Front

What role do decomposers play in the food chain?

Back

Decomposers act as nutrient recyclers, breaking down dead organic matter and returning nutrients to the soil.

Tags

NGSS.MS-LS2-3

Front

Which layer of the Earth is primarily composed of molten rock?

Back

The Outer Core is primarily composed of molten rock.

Front

What is the main cause of climate change?

Back

The main cause of climate change is greenhouse gas emissions.

Tags

NGSS.MS-ESS2-6

NGSS.MS-ESS3-5

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Tags

NGSS.MS-LS1-6

Front

What are greenhouse gases?

Back

Greenhouse gases are gases that trap heat in the atmosphere, contributing to the greenhouse effect and climate change.

Tags

NGSS.MS-ESS3-5

Front

What is the significance of decomposers in an ecosystem?

Back

Decomposers are crucial for nutrient cycling, breaking down dead organisms and waste, which enriches the soil.

Tags

NGSS.MS-LS2-3

Front

What is the difference between the inner core and outer core of the Earth?

Back

The inner core is solid and composed mainly of iron and nickel, while the outer core is liquid and also composed of iron and nickel.

Tags

NGSS.MS-PS1-1

Front

What is the greenhouse effect?

Back

The greenhouse effect is the warming of the Earth's surface due to the trapping of heat by greenhouse gases in the atmosphere.

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5