Games Review Science

What is the primary purpose of a control group in a scientific experiment?

• To provide a standard for comparison

• To introduce new variables

• To ensure the experiment is biased

• To increase the sample size

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

• Melting ice

• Boiling water

• Burning wood

• Breaking glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the chemical formula for table salt?

Which organelle is known as the powerhouse of the cell?

• Nucleus

• Mitochondria

• Ribosome

• Chloroplast

Tags

NGSS.MS-LS1-2

What is the acceleration due to gravity on Earth?

Which gas is most abundant in the Earth's atmosphere?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen

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

• Respiration

• Photosynthesis

• Transpiration

• Digestion

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is a renewable source of energy?

• Coal

• Natural Gas

• Wind

• Nuclear

What is the pH level of pure water?

• 0

• 7

• 14

• 5

Which planet is known as the Red Planet?

• Venus

• Mars

• Jupiter

• Saturn