Water and Oxygen

Which plant part collects the sun's energy and makes food?

• Leaf
• Stem
• Roots
• Flower

When water cools and again becomes liquid water; this is how clouds are formed. This is called:

• Evaporation

• Condensation

• Precipitation

• Runoff

Which is NOT a step of the water cycle?

• Precipitation

• Evaporation

• Transpiration

• Condensation

What two products does a plant make during photosynthesis?

• Water and Glucose
• Oxygen and Glucose
• Oxygen and Water
• CO₂ and Glucose

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Attractions between water molecules are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

Does evaporation happen before or after condensation?

• before
• after
• during

Water that is found underground in the cracks and spaces in soil, sand and rock is called:

• Groundwater

• River

• Surface water

• Snow

The class decided to have a terrarium.  The teacher says it is important to include both plants and animals.  Why is it necessary to include both plants and animals?

• plants provide food for the animals and animals provide water for the plants
• plants provide water for the animals and animals provide food for the plants
• plants provide carbon dioxide for the animals and animals provide oxygen for the plants
• plants provide oxygen for animals and the animals provide carbon dioxide for the plants

Why does water move from the roots to the leaves of plants?

• Water is pushed by solutes
• Capillary action pulls the water molecules like a chain
• Water is pulled by gravity
• Water’s cohesion causes it to “pull” towards the leaves