PLTW App Creators Summative Unit Review

What is the primary function of a catalyst in a chemical reaction?

• To increase the temperature of the reaction

• To decrease the activation energy of the reaction

• To change the equilibrium position of the reaction

• To increase the pressure of the reaction

Which of the following is an example of a renewable energy source?

• Coal

• Natural Gas

• Solar Energy

• Nuclear Energy

What is the chemical formula for glucose?

Tags

NGSS.MS-PS1-1

In the water cycle, what process is responsible for water vapor turning into liquid water?

• Evaporation

• Condensation

• Precipitation

• Transpiration

Tags

NGSS.MS-ESS2-4

Which of the following best describes the process of photosynthesis?

• Conversion of chemical energy into light energy

• Conversion of light energy into chemical energy

• Conversion of thermal energy into mechanical energy

• Conversion of mechanical energy into thermal energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the main purpose of the scientific method?

• To prove a hypothesis

• To systematically investigate phenomena

• To create new scientific laws

• To establish scientific facts

Tags

NGSS.MS-PS2-2

Which of the following elements is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Hydrogen

What is the acceleration due to gravity on Earth?

Which organelle is known as the powerhouse of the cell?

• Nucleus

• Ribosome

• Mitochondria

• Chloroplast

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

What is the pH level of a neutral solution at 25°C?

• 0

• 7

• 14

• 10