Grade 9 Brain Development Worksheet
Explore the fascinating world of brain development with this comprehensive Grade 9 science worksheet, covering key structures, functions, and developmental stages.
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Grade 9 Brain Development
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Read each question carefully and provide your best answer. Some questions may require you to refer to the provided diagram.
1. Which part of the brain is primarily responsible for higher-level thinking, decision-making, and memory?
Cerebellum
Brainstem
Cerebrum
Spinal Cord
2. What is the process by which neurons form new connections and strengthen existing ones, particularly during childhood and adolescence?
Myelination
Synaptic Pruning
Neurogenesis
Synaptogenesis
3. The is a fatty substance that insulates nerve fibers and speeds up the transmission of electrical signals.
4. The brain's ability to reorganize itself by forming new neural connections throughout life is known as .
5. Label the major parts of the brain indicated in the diagram below.
A:
B:
C:
6. Briefly explain the role of neurotransmitters in brain function.
7. The human brain is fully developed by the age of 5.
True
False
8. Adolescence is a critical period for brain development, particularly in areas related to impulse control and judgment.
True
False