Question 1

Compared to the average 4-year-old in Sweden,how tall is the average 6-year-old in Bangladesh?

Accepted Answer

The average 6-year-old in Bangladesh is about the same height as the average 4-year-old in Sweden, reflecting differences in nutritional and health standards between the countries.

Question 2

Your brother is very impressed with his 4-year-old daughter's development,particularly in emotional regulation.He asks your opinion about his observations and you tell him that her advances in development are likely due to ____.

Accepted Answer

Emotional regulation is primarily controlled by the frontal lobe of the brain, which continues to develop throughout childhood. Therefore, it is likely that his daughter's advances in development are due to growth in her frontal lobe. While genetics and parenting can also play a role, they are not specific to emotional regulation development in the same way as brain development. The new preschool may also have contributed to her development, but it is not specified how or why.

Question 3

When Andrew turns 3 years old,one can expect him to weigh ____.

Accepted Answer

The average weight for a 3-year-old is around 30 pounds. Therefore, choice B is the best answer. The other choices are either too light or too heavy for a typical 3-year-old.

Question 4

During childhood,boys are slightly ____ than girls.

Accepted Answer

Studies have shown that, on average, boys are taller and heavier than girls during childhood. This is mostly due to differences in growth hormones and genetics.

Question 5

Children begin to lose their "baby teeth" around age ____.

Accepted Answer

Children generally begin to lose their baby teeth around age 6, although it can vary slightly from child to child.

Question 6

By age 3,the brain is about ____ of its adult weight,and by age 6 it is ____.

Accepted Answer

By age 3, the brain is about 70% of its adult weight, and by age 6 it reaches 90% of its adult weight. Therefore, the closest answer is C, which states that by age 6 the brain is 90% of its adult weight.

Question 7

_____ lobe grows faster than the rest of the cerebral cortex during early childhood.

Accepted Answer

The frontal lobe is known to grow faster than other lobes during early childhood, which is believed to be linked with the development of higher-order cognitive functions such as decision-making, problem-solving, and social behavior.

Question 8

What percentage of North American children have at least one dental cavity by age five years?

Accepted Answer

Approximately 40% of North American children have at least one dental cavity by the age of five years, indicating a significant prevalence of early childhood caries in this population.

Question 9

Wealthier parents have children who weigh more and are taller because ____.

Accepted Answer

Wealthier parents have access to more nutritional foods, such as fresh fruits and vegetables, lean meats, and whole grains. These foods provide more nutrients essential for growth and development, which can result in taller and heavier children. Additionally, they may have the resources to afford higher quality healthcare and education, further contributing to their children's overall health and well-being.

Question 10

Layla is 3 years old.How many teeth would you expect her to have?

Accepted Answer

By the time a child is 3 years old, they should have all 20 of their primary (baby) teeth. Therefore, the correct answer is 20 (Choice C).

Question 11

The typical 6-year-old weighs about ____.

Accepted Answer

According to the Centers for Disease Control and Prevention (CDC), the average weight of a 6-year-old boy is 45 pounds and the average weight of a 6-year-old girl is also 45 pounds. Therefore, the best choice is C, 45 pounds.

Question 12

How many teeth does the average 3-year-old have?

Accepted Answer

The average 3-year-old has 20 teeth, which typically include 10 upper teeth (4 incisors, 2 canines, and 4 molars) and 10 lower teeth (4 incisors, 2 canines, and 4 molars).

Question 13

Vladimir is 3 years old and preparing for his first dental visit.Beyond a routine cleaning,Vladimir may also be given ____.

Accepted Answer

Novocain is not typically given to children during routine dental visits, and teeth-whitening gum is not appropriate for a young child. Water fortified with calcium may be beneficial for overall dental health, but it is not typically given during a dental visit. A fluoride rinse and sealants, however, are common preventive measures that dentists may recommend for young children to help protect their teeth from decay.

Question 14

Mehrak lives in America and is 45 inches tall and weighs 45 pounds.She is in good health and her pediatrician says she is developing at a normal pace.Knowing her height and weight,it is safe to say that Mehrak is around ____.

Accepted Answer

A 6-year-old child typically has a height of around 42-49 inches and a weight of 36-60 pounds, which matches Mehrak's measurements.

Question 15

From ages 3 to 6,the typical American child grows ____ inches per year and adds ____ pounds.

Accepted Answer

According to the Centers for Disease Control and Prevention (CDC), the average American child grows around 2-3 inches per year and gains around 5-7 pounds between ages 3 to 6. Therefore, option B is the closest to the correct answer.

Question 16

The typical 6-year-old is about how tall?

Accepted Answer

According to CDC Growth Charts, the average height for a 6-year-old boy is around 45 inches (114.3 cm) and for a 6-year-old girl is around 44 inches (111.8 cm).

Question 17

Your neighbor's daughter seems to eat candy quite a bit between meals.Her parents are worried about this and ask you.What would you tell her parents?

Accepted Answer

Eating candy between meals can increase the risk of developing cavities, as sugar feeds the harmful bacteria in the mouth that contribute to decay. It would be best to promote healthier snack options such as fruits or vegetables.

Question 18

Why are the average heights and weights of children in early childhood in developing countries considerably lower than developed countries?

Accepted Answer

Poor nutrition and diseases are the most significant reasons why the average heights and weights of children in early childhood in developing countries are considerably lower than in developed countries. Developing countries often lack access to nutritious foods, clean water, and healthcare, which can lead to stunted growth and underweight children. Additionally, children in developing countries are more likely to suffer from diseases, which can further harm their growth and development. Thus, due to a lack of resources, children in developing countries are more susceptible to malnourishment and health issues that hinder their growth.

Question 19

Increase in brain size and weight during early childhood is due to ____.

Accepted Answer

The increase in brain size and weight during early childhood is mainly due to dendritic connections and myelination. This process enhances the efficiency of neural communication and improves cognitive functioning. While cerebral spinal fluid and the increase in blood volume do play a role in brain development, they do not account for the significant increase in brain size and weight during early childhood. The number of neurons also plays a role in brain development, but it is not the primary factor in the increase in brain size and weight during early childhood.

Question 20

____ in developing countries causes a considerably lower average for height and weight during early childhood.

Accepted Answer

Lower nutrition and higher likelihood of childhood diseases can lead to stunted growth and lower weight in developing countries. Lack of access to nutritious food, clean water, and healthcare can contribute to this problem.

Quiz 6: Early Childhood