Which of the following is the basic unit of life?

• Atom

• Cell

• Tissue

• Organ

What organelle is responsible for controlling the activities of the cell?

• Mitochondria

• Ribosome

• Nucleus

• Cytoplasm

Which process allows plants to make their own food?

• Respiration

• Photosynthesis

• Digestion

• Fermentation

What is the main function of the respiratory system?

• Pump blood

• Break down food

• Remove waste

• Exchange gases

Which of the following is an example of a vertebrate?

• Earthworm

• Spider

• Frog

• Snail

What do we call the change from liquid to gas?

• Condensation

• Freezing

• Evaporation

• Melting

Which layer of the Earth is liquid?

• Crust

• Mantle

• Outer core

• Inner core

Which planet is known as the Red Planet?

• Venus

• Mars

• Jupiter

• Saturn

Which force pulls objects toward the Earth?

• Friction

• Magnetism

• Gravity

• Electricity

Which is a non-renewable source of energy?

• Solar

• Wind

• Coal

• Hydropower