Body Growth
What is the overall pattern of physical growth during middle childhood: rapid and uneven, or slow and steady?
Slow and steady.
Does brain development in middle childhood mainly involve growth in size or improvements in organization and efficiency?
Improvements in organization and efficiency.
Obesity is described as a percentage increase over healthy weight. Based on BMI, what is the percentage.
20%
What is the specific term for nearsightedness, the most common vision problem in middle childhood?
Myopia.
Improvements in running, jumping, and throwing reflect changes in underlying capacities. Identify two of these capacities.
Balance, agility, flexibility, or force.
Which specific body region grows faster and causes children to develop longer legs and more adult-like proportions?
The lower body.
Which type of brain matter increases and improves communication between different brain regions: white matter or gray matter?
White matter.
In a food desert, what type of diet becomes more common: one high in whole foods or one high in processed foods?
Processed foods.
Illness rates increase at school entry due to two interacting factors. Identify both the environmental factor and the biological factor.
Increased exposure to peers and an immune system that is still developing.
Explain why motor skill improvements are not purely biological but also influenced by environment. Consider the example of sports in your answer.
Practice opportunities, instruction, and access to activities shape skill development.
Around what age do girls begin to surpass boys in height and weight? Give the approximate age.
Around age 9
What happens to gray matter during middle childhood: does it steadily increase, or does it peak and then decline?
It peaks and then declines.
What major environmental factor increases the risk of malnutrition in children?
Poverty.
Explain how a population or subset of school-age children can have both short-term illnesses and a significant rate of chronic conditions at the same time.
High exposure leads to peers is associated with frequent acute illness, while a subset of children can have chronic diseases such as asthma.
Boys often outperform girls in some gross motor tasks. According to the textbook, what is the primary explanation for this difference?
Social environment and encouragement, not biological advantage.
Which specific body composition change increases more in girls after about age 8: muscle mass or body fat?
Body fat.
What is the specific term for the process in which unused neural connections are eliminated?
Synaptic pruning.
Please identify a hormone and its link between chronic stress and in increase in food consumption.
Cortisol signals the body to increase energy expenditure and thus caloric intake.
Vision and hearing problems are emphasized in this stage not just as medical issues but as learning barriers. How they affect school performance?
They interfere with receiving and processing classroom information.
Fine motor improvements in writing reflect what broader developmental change beyond muscle control? Name at least one change.
Increased coordination, planning, and visual-motor integration.
What specific feature of the skeletal system explains why children are especially flexible during this period?
Ligaments are not yet firmly attached to bones.
What is the main cognitive benefit of synaptic pruning: more connections or more efficient processing?
More efficient processing.
Temporary starvation causes a physical stress response, causing the body to learn to burn calories more slowly.
Effective intervention for health issues combines detection and management. Identify one strategy for early detection and one for ongoing management.
Detection: regular screenings. Management: health education and family or school support.
Children’s drawings become more organized and show depth. What cognitive shift allows this change?
The ability to relate objects within a structured spatial system.