Earth & Space
Matter & Energy
Life Sciences
Scientific Practices
Fun Science Facts
100

What causes day and night on Earth?

What is Earth’s rotation on its axis?

100

What are the three states of matter?

What is solid, liquid, gas?

100

What do all living things need to survive?

What is food, water, air, and shelter?

100

What tool measures temperature?

What is thermometer?

100

What planet is known as the “Red Planet”?

What is Mars?

200

What are the three main types of rocks?

What is igneous, sedimentary, metamorphic?

200

What is the process called when a liquid becomes a gas?

What is evaporation?

200

What is a food chain?

What is a sequence showing how energy flows from one organism to another?

200

What is a hypothesis?

What is a testable prediction?

200

What gas do we breathe in to stay alive?

What is oxygen?

300

What is the difference between weather and climate?

What is weather is short-term; climate is long-term patterns

300

How does heat affect molecules in a substance?

What is it makes them move faster?

300

What part of the plant makes food using sunlight?

What is leaves (through photosynthesis)?

300

Why do scientists repeat experiments?

What is to verify results and ensure accuracy?

300

What is the largest organ in the human body?

What is the skin?

400

What causes the Moon’s phases?

What is the Moon’s position relative to Earth and the Sun?

400

What is the Law of Conservation of Matter?

What is matter cannot be created or destroyed?

400

What is an adaptation?

What is a trait that helps an organism survive in its environment?

400

What is the difference between an observation and an inference?

What is observation is what you see; Inference is conclusion based on what you observe?

400

What metal is liquid at room temperature?

What is Mercury?

500

How do earthquakes and volcanoes help shape the Earth’s surface?

What is they create and change landforms?

500

How do we know a chemical change has occurred?

What is color change, gas production, temperature change, or a new substance is formed?

500

How do traits get passed from parents to offspring?

What is through genes and heredity?

500

What are variables in an experiment?

What is factors that are changed, measured, or controlled?

500

What is the force that keeps us on Earth?

What is gravity?

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