Physics
Biology
Chemistry
Space
Nature of Science
100

What is the unit of force?

What is the Newton?

100

What is the basic functional unit of life?

What is the cell?

100

What is the smallest unit of an element?

What is an atom?

100

What layer of Earth do we live on?

What is the crust?

100

What is the scientific method?

What is a systematic approach to research and experimentation?

200

What do we call the force that opposes motion between two surfaces in contact?

What is friction?

200

What process do plants use to convert sunlight into energy?

What is photosynthesis?

200

What do we call a substance made up of two or more elements that are chemically combined?

What is a compound?

200

What is the primary gas found in the Earth's atmosphere?

What is nitrogen?

200

What do scientists use to test hypotheses?

What is experiments?

300

What is the law that states that energy cannot be created or destroyed, only transformed?

What is the law of conservation of energy?

300

What part of the cell is responsible for controlling what enters and leaves the cell?

What is the cell membrane?

300

What is the pH scale used for?

What is measuring the acidity or basicity of a solution?

300

What phenomenon causes day and night?

What is the rotation of the Earth?


300

What is a variable in an experiment?

What is any factor that can change and affect the outcome of the experiment?

400

Define potential energy.

What is the energy stored due to an object's position?

400

What organ system is responsible for transporting blood throughout the body?

What is the circulatory system?

400

What is the chemical formula for water?

What is H₂O?

400

What do we call the movement of tectonic plates?

What is plate tectonics?

400

What is peer review?

What is the process by which scientists evaluate each other’s work before publication?

500

What is the relationship between mass and weight on Earth?

What is weight equals mass times the acceleration due to gravity (approximately 10 m/s²)?

500

What is the process of cellular respiration?

What is the process of converting glucose and oxygen into energy, carbon dioxide, and water?

500

What is an example of an endothermic reaction?

What is the process of photosynthesis?

500

What is the significance of the ozone layer?

What is it protects the Earth from harmful UV radiation?

500

Why is it important to replicate experiments?

What is to ensure accuracy and reliability of results?

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