6th Grade Science Review

Trivial

REVIEW

6th Grade Science

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QUESTION 1/6 - MATTER

Question 1/6 - Matter

Explanation

When a solid object is heated from energy and changes into a liquid it is called melting.

QUESTION 2/6 - Soil

QUESTION 2/6 - Soil

Explanation

The A Horizon, or topsoil, is a dark brown layer rich in minerals and organic matter where most plant roots grow. It is very fertile and essential for plant growth and agriculture.

QUESTION 3/6 - Rocks

QUESTION 3/6 - ROCKS

Explanation

Igneous rocks form when magma or lava cools and solidifies. If the melted rock cools beneath the Earth’s surface, it forms intrusive igneous rocks with large crystals. If it cools on the surface after a volcanic eruption, it forms extrusive igneous rocks with small or no visible crystals.

QUESTION 4/6 - CELLS

QUESTION 4/6 - CELLS

Explanation

This diagram is correct because it shows a cell without a cell wall or chloroplasts, which are found only in plant cells. It also contains organelles like the nucleus and mitochondria, which bacteria cells lack.

QUESTION 5/6 - Minerals

QUESTION 5/6 - Minerals

Explanation

A substance must be naturally occurring to be considered a mineral, meaning it forms through natural Earth processes rather than being made by humans. Man-made materials, like synthetic gems, do not qualify as true minerals because they aren’t created in nature.

QUESTION 6/6 - Speed

QUESTION 6/6 - SPEED

Explanation

A curved line that gets steeper as it goes up shows an object is accelerating or speeding up. It’s moving faster over time. The increasing slope means distance is increasing more quickly each second.

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IXL SciencE

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Legends of Learning