Shades of Meaning

What is the term used to describe the subtle differences in meaning between similar scientific terms?

• Nuance

• Gradient

• Spectrum

• Variation

In the context of scientific experiments, what does the term 'control' refer to?

• A variable that is changed

• A variable that is kept constant

• A variable that is measured

• A variable that is ignored

Tags

NGSS.MS-PS1-2

Which of the following best describes the concept of 'entropy' in thermodynamics?

• Order in a system

• Disorder in a system

• Energy in a system

• Temperature in a system

What is the primary purpose of a hypothesis in scientific research?

• To prove a theory

• To provide a testable explanation

• To collect data

• To analyze results

In biology, what is the term for the process by which organisms better adapted to their environment tend to survive and produce more offspring?

• Natural Selection

• Genetic Drift

• Mutation

• Speciation

Tags

NGSS.MS-LS4-4

Which of the following is an example of a chemical change?

• Melting ice

• Boiling water

• Burning wood

• Breaking glass

Tags

NGSS.MS-PS1-2

What is the role of chlorophyll in photosynthesis?

• Absorb water

• Absorb sunlight

• Release oxygen

• Store energy

Tags

NGSS.MS-LS1-6

In physics, what does the term 'velocity' refer to?

• Speed in a given direction

• Rate of change of speed

• Distance traveled

• Time taken

Which of the following is a renewable source of energy?

• Coal

• Natural Gas

• Solar

• Nuclear

What is the pH level of a neutral solution?

• 0

• 7

• 14

• 10