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 harmful ultraviolet radiation

• 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?

Tags

NGSS.MS-PS1-1

Which organelle is known as the powerhouse of the cell?

• Nucleus

• Mitochondria

• Ribosome

• Endoplasmic Reticulum

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

• Fermentation

Tags

NGSS.MS-LS1-6

Which of the following is a renewable source of energy?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy

What is the pH level of pure water?

• 0

• 7

• 14

• 5

Which planet is known as the Red Planet?

• Venus

• Mars

• Jupiter

• Saturn