Codehs

What is the primary function of mitochondria in cells?

• Energy production

• Protein synthesis

• DNA replication

• Photosynthesis

Tags

NGSS.HS-LS1-7

Which of the following is a chemical change?

• Melting of ice

• Rusting of iron

• Boiling of water

• Breaking of glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the chemical formula for table salt?

Tags

NGSS.MS-PS1-1

Which planet is known as the Red Planet?

• Earth

• Mars

• Jupiter

• Venus

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

• Respiration

• Photosynthesis

• Transpiration

• Digestion

Tags

NGSS.MS-LS1-6

What is the boiling point of water at sea level?

• 100°C

• 0°C

• 50°C

• 200°C

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

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen

What is the hardest natural substance on Earth?

• Gold

• Iron

• Diamond

• Silver

Which organ in the human body is primarily responsible for detoxification?

• Heart

• Liver

• Kidney

• Lungs

What is the chemical symbol for gold?

• Au

• Ag

• Pb

• Fe