Holes Study Guide

What is the primary function of the ozone layer in Earth's atmosphere?

• To trap heat and warm the planet

• To reflect sunlight and cool the planet

• To absorb ultraviolet radiation from the sun

• To provide oxygen for breathing

Which of the following is a chemical change?

• Melting of ice

• Boiling of water

• Rusting of iron

• Breaking of glass

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the chemical formula for table salt?

Which planet is known as the Red Planet?

• Venus

• Mars

• Jupiter

• Saturn

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

• Respiration

• Photosynthesis

• Transpiration

• Fermentation

Tags

NGSS.MS-LS1-6

Which gas is most abundant in Earth's atmosphere?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen

What is the boiling point of water at standard atmospheric pressure?

• 90°C

• 100°C

• 110°C

• 120°C

Tags

NGSS.MS-PS1-4

Which of the following is a renewable source of energy?

• Coal

• Natural Gas

• Wind

• Nuclear

What is the hardest natural substance on Earth?

• Gold

• Iron

• Diamond

• Quartz

What is the main component of the sun?

• Oxygen

• Hydrogen

• Carbon

• Helium