WCAS Review

The diagram below represents the saltwater solution made by the student. When salt (NaCl) molecules are added to water (H2O), they break into one sodium (Na) particle and one chlorine (Cl) particle.

Chose the name of the solvent and solute

• Solute = H2O Solvent=NaCI

• Solvent = H2O Solute= NaCl

What is the chemical formula for water?

Tags

NGSS.MS-PS1-1

Which of the following is a renewable energy source?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy

What is the acceleration due to gravity on Earth?

• 9.8 m/s^2

• 8.9 m/s^2

• 10.5 m/s^2

• 7.8 m/s^2

Which organelle is known as the powerhouse of the cell?

• Nucleus

• Mitochondria

• Ribosome

• Endoplasmic Reticulum

Tags

NGSS.MS-LS1-2

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

• Respiration

• Photosynthesis

• Digestion

• Transpiration

Tags

NGSS.MS-LS1-6

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

• Oxygen

• Carbon Dioxide

• Nitrogen

• Hydrogen

What is the boiling point of water at sea level?

• 100°C

• 90°C

• 80°C

• 110°C

Which of the following elements is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Hydrogen

What is the primary function of red blood cells?

• Fight infections

• Transport oxygen

• Clot blood

• Produce hormones