Mid Term Review

Mid Term Review

Assessment

Flashcard

Science

8th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What are divergent plate boundaries?

Back

Divergent plate boundaries are regions where tectonic plates move apart from each other, leading to the formation of new crust as magma rises to the surface. This process often creates mid-ocean ridges.

2.

FLASHCARD QUESTION

Front

What are convergent plate boundaries?

Back

Convergent plate boundaries occur where tectonic plates move towards each other, often resulting in one plate being forced beneath another (subduction). This can lead to mountain formation, earthquakes, and volcanic activity.

3.

FLASHCARD QUESTION

Front

What is the chemical formula for calcium hydroxide?

Back

The chemical formula for calcium hydroxide is Ca(OH)₂.

4.

FLASHCARD QUESTION

Front

What is the chemical formula for sulfuric acid?

Back

The chemical formula for sulfuric acid is H₂SO₄.

5.

FLASHCARD QUESTION

Front

How do you calculate the mass of a reactant in a chemical reaction?

Back

To calculate the mass of a reactant, use the balanced chemical equation and the law of conservation of mass, which states that mass is neither created nor destroyed in a chemical reaction.

6.

FLASHCARD QUESTION

Front

What is the significance of Earth's axial tilt?

Back

Earth's axial tilt (approximately 23.5 degrees) is responsible for the changing seasons as it affects the angle and intensity of sunlight received at different latitudes throughout the year.

7.

FLASHCARD QUESTION

Front

What is the role of sunlight in a rainforest ecosystem?

Back

In a rainforest ecosystem, sunlight is crucial for photosynthesis, allowing plants to produce energy and oxygen, which supports the entire food web.

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