GED Science Review

What is the process by which plants make their own food using sunlight?

• Hydrolysis

• Chloroplast

• Photosynthesis

• Respiration

What is the basic unit of life?

• organism

• atom

• cell

• molecule

What is the force that pulls objects towards the center of the Earth?

• Magnetism

• Friction

• Gravity

• Repulsion

What is the main function of the respiratory system?

• Digest food

• Regulate body temperature

• Transport nutrients

• Facilitate gas exchange

What is the role of the nucleus in a cell?

• Storage of waste materials

• Production of energy for the cell

• Regulation of cell shape

• Control center of the cell, containing genetic material and regulating gene expression.

What is the difference between a physical change and a chemical change?

• Chemical changes are reversible, physical changes are not

• Physical changes involve a change in chemical composition

• Physical changes always result in a change of state

• The main difference between a physical change and a chemical change is that physical changes do not involve a change in chemical composition, while chemical changes do.

What is the law of conservation of energy?

• Energy can be destroyed completely

• Energy can be created out of nothing

• Energy can be transformed into matter

• Energy cannot be created or destroyed, only transferred or transformed.

What is the function of the ozone layer in the atmosphere?

• Absorbing harmful ultraviolet radiation

• Producing greenhouse gases

• Blocking visible light

• Reflecting harmful ultraviolet radiation

What is the difference between a hypothesis and a theory?

• A hypothesis is based on extensive evidence, while a theory is based on limited evidence.

• A hypothesis is a proposed explanation based on limited evidence, while a theory is a well-substantiated explanation supported by extensive evidence.

• A hypothesis is a proven fact, while a theory is a guess.

• A hypothesis is always correct, while a theory can be wrong.

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CCSS.RI.2.1

CCSS.RI.3.1

CCSS.RL.1.1

CCSS.RL.2.1

CCSS.RL.3.1

What is the importance of biodiversity in an ecosystem?

• Resilience is not affected by biodiversity

• Biodiversity enhances ecosystem stability, resilience, and productivity, and provides essential ecosystem services.

• Ecosystems with low biodiversity are more productive

• Biodiversity has no impact on ecosystem stability