Science Questions for Grade 7

What is the basic unit of life?

• Organism

• Organ

• Tissue

• Cell

Which planet is known as the Red Planet?

• Saturn

• Venus

• Mars

• Jupiter

What is the process by which plants make their food?

• Photosynthesis

• Respiration

• Digestion

• Transpiration

What is the chemical formula for water?

• H2O2

• H2O

• NaCl

• CO2

Which gas do living beings need to breathe?

• Oxygen

• Hydrogen

• Carbon Dioxide

• Nitrogen

What is the largest organ in the human body?

• Skin

• Lungs

• Liver

• Heart

What is the main source of energy for the Earth?

• Ocean currents

• Volcanic activity

• The Sun

• The Moon

What type of rock is formed from cooled magma?

• Igneous rock

• Limestone

• Metamorphic rock

• Sedimentary rock

What is the force that pulls objects toward the Earth?

• Electromagnetism

• Magnetism

• Gravity

• Friction

What is the term for animals that eat both plants and meat?

• Carnivores

• Herbivores

• Omnivores

• Insectivores