Week 12

If a lunar rover has a weight of -980N on Earth (where Earth’s gravity is -9.8 m/s/s), what will be its weight on the moon (where gravity is -1.6 m/s/s)? (See Lesson 23 question 13)

What is the chemical formula for water?

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?

• Photosynthesis

• Respiration

• Transpiration

• Digestion

Tags

NGSS.MS-LS1-6

What is the powerhouse of the cell?

• Nucleus

• Ribosome

• Mitochondria

• Chloroplast

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

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

What is the main gas found in the air we breathe?

• Oxygen

• Carbon Dioxide

• Nitrogen

• Helium

What force keeps us on the ground?

• Magnetism

• Friction

• Gravity

• Electricity

Tags

NGSS.MS-PS2-4