TEXAS- 6th Grade Science Review

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What is conduction?

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Conduction is the transfer of heat through direct contact between materials. It occurs when heat moves from a hotter object to a cooler one.

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What is convection?

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Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer, less dense fluid rises and cooler, denser fluid sinks.

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What is radiation?

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Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium to travel through, allowing heat to be transferred through space.

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What happens during a chemical reaction?

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During a chemical reaction, substances (reactants) undergo a transformation to form new substances (products) with different properties.

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What is a biotic factor in an ecosystem?

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A biotic factor is a living or once-living component of an ecosystem, such as plants, animals, and microorganisms.

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What is an abiotic factor in an ecosystem?

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An abiotic factor is a non-living component of an ecosystem, such as sunlight, water, temperature, and soil.

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Which planet is most similar to Earth?

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Mars is considered the planet most similar to Earth due to its similar day length, polar ice caps, and potential for water.

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What is the Earth's crust?

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The Earth's crust is the outermost layer of the Earth, which is solid and relatively thin compared to the layers beneath it.

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What is the mantle?

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The mantle is the layer of the Earth located between the crust and the outer core, composed of semi-solid rock that flows slowly.

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What is the outer core?

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The outer core is the layer of the Earth beneath the mantle, composed of liquid iron and nickel, responsible for Earth's magnetic field.