What is photosynthesis?
CAST Practice Flashcard (Gr. 8)

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Science
•
6th - 8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, using carbon dioxide and water to produce glucose and oxygen.
2.
FLASHCARD QUESTION
Front
What effect does light intensity have on photosynthesis?
Back
Light intensity affects the rate of photosynthesis; higher light intensity generally increases the rate, while lower light intensity can reduce it.
3.
FLASHCARD QUESTION
Front
What is a La Nina event?
Back
A La Nina event is a climate pattern characterized by cooler-than-average sea surface temperatures in the central and eastern Pacific Ocean, which can influence weather patterns globally.
4.
FLASHCARD QUESTION
Front
How do greenhouse gases affect Earth's temperature?
Back
Greenhouse gases trap heat in the atmosphere, leading to an increase in Earth's average temperature, a phenomenon known as the greenhouse effect.
5.
FLASHCARD QUESTION
Front
What is the role of sunlight in photosynthesis?
Back
Sunlight provides the energy needed for photosynthesis, allowing plants to convert carbon dioxide and water into glucose and oxygen.
6.
FLASHCARD QUESTION
Front
What is a magnetic field?
Back
A magnetic field is a region around a magnet where magnetic forces can be detected, influencing the behavior of charged particles and magnetic materials.
7.
FLASHCARD QUESTION
Front
How can you demonstrate the existence of a magnetic field?
Back
You can demonstrate a magnetic field by showing that a magnet can influence the movement of a small metal object, such as a ball, without direct contact.
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