Photosynthesis & Respiration
Food Chains & Webs
Energy Pyramids
Water Cycle
100

This process allows plants to make their own food using sunlight.

What is photosynthesis?

100

A food chain always starts with this type of organism.

What is a producer?

100

This trophic level converts sunlight into chemical energy.

What are producers?

100

Rain, snow, sleet, and hail are examples of this.

What is precipitation?

200

This gas is taken in by plants during photosynthesis.

What is carbon dioxide?

200

Animals that eat only plants are called these.

What are herbivores?

200

This percentage of energy is transferred from one trophic level to the next. 

What is 10%?

200

Water that flows along the surface of the Earth and back into a body of water is known as....

What is runoff?

300

This process breaks down glucose into usable energy (ATP).

What is cellular respiration?

300

In the food chain below, the snake is a __________ consumer.

Berry ---> Mouse ---> Snake ---> Hawk

What is a secondary consumer?

300

Why does only a small percentage of an organisms energy move to the next trophic level?

It is used by the organism (lost in the form of heat). 

300

Explain how clouds form. 

Water vapor in the atmosphere cools and then condenses on small particles in the air. More and more water molecules collect and the cloud grows. 

400

What are the raw materials and products for cellular respiration?

Raw materials: glucose and oxygen

Products: carbon dioxide, water, and ATP

400

Imagine a food web where algae is one of the major producers. What would happen if all the algae died?

Answers may vary

400

If a producer has 100 calories of energy, this many calories are transferred to the secondary consumer. 

What is 1 calorie?

400

Explain the difference between evaporation and condensation.

Evaporation changes water from a liquid to a gas. Condensation changes water from a gas to a liquid.

500

Write the formula for photosynthesis using chemical symbols. 

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

500

Why are food webs more accurate than food chains?

They better represent organisms' diets within an ecosystem because they show multiple energy pathways.
500

If a tertiary consumer received 0.52 calories in an energy pyramid, the producer must have had this many calories of energy. 

What is 520 calories?

500

When you breathe out in the winter, you can often see your breath. Explain why. 

The warm water vapor we exhale condenses when it hits the cold air, causing small, visible clouds to form. 

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