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Chemical Reactions in Living Things
Ecosystems
Weather and Climate
Seasons
100

This type of change creates a new substance.

What is a chemical change?

100

Plants use this process to make their own food.

What is photosynthesis?

100

An organism that makes its own food.

What is a producer?

100

The condition of the atmosphere at a certain time and place.

What is weather?

100

The Earth’s tilt and revolution around the Sun cause these.

What are seasons?

200

Any resource or environmental condition that restricts the size, growth, or distribution of a population within an ecosystem.

What is a limiting factor?

200

This gas is released during photosynthesis.

What is oxygen?

200

All the living and nonliving things in an area together make up this.

What is an ecosystem?

200

The long-term average pattern of weather in an area.

What is climate?

200

The season with the most direct sunlight in the Northern Hemisphere.

What is summer?

300

An imaginary horizontal line that circles the Earth that measures the distance north or south of the Equator.

What are lines of latitude?

300

The organelle where photosynthesis occurs.

What is the chloroplast?

300

A relationship in which both organisms benefit.

What is mutualism?

300

Warm air rises because it is less ________.

What is dense?

300

This season begins around December 21 in the Northern Hemisphere.

What is winter?

400

The apparent curving or deflection of the path of objects, winds, or ocean currents traveling long distances across Earth's surface.

What is the Coriolis Effect?

400

This process releases energy from food in cells.

What is cellular respiration?

400

Organisms that break down dead organisms and recycle nutrients back into the soil.

What are decomposers?

400

This tool measures air pressure.

What is a barometer?

400

The reasons for Earth having seasons.

What is the Earth is titled on its axis as it revolves around the sun?

500

This law states that matter cannot be created or destroyed in a chemical reaction.

What is the Law of Conservation of Mass?

500

The reactants for photosynthesis.

What are glucose and oxygen?

500

An atmospheric gas that absorbs and traps heat from the sun.

What are greenhouse gases?

500

The pressure system associated with stormy weather.

What is a low pressure system?

500

During this event, day and night are nearly equal in length everywhere on Earth.

What is an equinox?