AMSO ROUND 1_SCIENCE_CLC 7

Which part of the plant makes food?

• Roots

• Leaves

• Flowers

What gas do humans breathe in?

• Nitrogen

• Oxygen

• Carbon dioxide

What does "2" in H2O mean?

• (A) 2 water molecules

• (B) 2 hydrogen atoms

• (C) 2 oxygen atoms

Which of these is NOT a compound?

• O2

• H2O

• CO2

What happens in covalent bonds?

• (A) Electrons are shared

• (B) Protons are gained

• (C) Neutrons are lost

What gas do plants take in for photosynthesis?

• (A) Oxygen

• (B) Nitrogen

• (C) Carbon dioxide

What is the main purpose of cellular respiration?

• (A) To make food

• (B) To produce energy

• (C) To store food

What do plants need to make food?

• (A) Sunlight, carbon dioxide, and water

• (B) Oxygen, water, and salt

• (C) Sugar and sunlight

Which elements form covalent bonds?

• (A) Oxygen and hydrogen

• (B) Sodium and chlorine

• (C) Magnesium and iodine

What waste gas is released in cellular respiration?

• (A) Oxygen

• (B) Carbon dioxide

• (C) Water