Science Semester Exam

What is the process by which plants make their food?

• Respiration

• Photosynthesis

• Digestion

• Fermentation

Which of the following is NOT a type of renewable energy source?

• Solar

• Wind

• Coal

• Hydroelectric

Which of the following is NOT a property of acids?

• Sour taste

• Turns blue litmus paper red

• Reacts with metals to produce hydrogen gas

• Feels slippery

What is the unit of measurement for electric current?

• Watts

• Volts

• Ohms

• Amperes or Amp

What is the densest layer of the Earth?

• Crust

• Mantle

• Outer core

• Inner core

What is the chemical symbol for water?

• O

• H2O

• CO2

• H

What type of galaxy is the Milky Way?

• Spiral

• Elliptical

• Irregular

• Dwarf

What is the boiling point of water in Celsius?

• 100°C

• 0°C

• 212°C

• -273°C

Which organ in the human body produces insulin?

• Liver

• Pancreas

• Kidneys

• Stomach

What is the Earth's primary source of energy?

• Geothermal

• Nuclear

• Solar

• Fossil fuels