Test Your Smarts - Body Smarts

Correct!

Both boys’ and girls’ voices change and become deeper, as the hormone testosterone causes the larynx (voice box) to grow and vocal chords to become longer and thicker.

Boys have more testosterone than girls, so their voices change more than girls’ voices do. As the voice box grows, a boy’s voice may sometimes “crack” or “break.” Once the larynx is done growing (within a few months), those unpredictable noises will stop.

Sorry, that is incorrect.

The answer is True. Both boys’ and girls’ voices change and become deeper, as the hormone testosterone causes the larynx (voice box) to grow and vocal chords to become longer and thicker.

Boys have more testosterone than girls, so their voices change more than girls’ voices do. As the voice box grows, a boy’s voice may sometimes “crack” or “break.” Once the larynx is done growing (within a few months), those unpredictable noises will stop.

Correct!

They really do!

Animals have growth spurts preparing them for adulthood also. In fact, scientists believe that even dinosaurs experienced a time of growth spurts and weight gain similar to what happens in human puberty.

Sorry, that is incorrect.

The answer is True. They really do!

Animals have growth spurts preparing them for adulthood also. In fact, scientists believe that even dinosaurs experienced a time of growth spurts and weight gain similar to what happens in human puberty.

Sorry, that is incorrect.

The answer is False. Puberty changes your body on the inside, too.

Your heart will nearly double its weight, and your lungs will double their capacity during puberty. Scientists have recently discovered that your brain may also grow during puberty.

Correct!

Puberty changes your body on the inside, too.

Your heart will nearly double its weight, and your lungs will double their capacity during puberty. Scientists have recently discovered that your brain may also grow during puberty.

Correct!

During preteen and teen years, the body grows so fast that tendons and ligaments become tighter.

In your body, tendons connect muscle to bone. Ligaments are tough fibers that connect bone to bone, or cartilage to bone. (Touch the tip of your nose or ear, which are made of cartilage, to feel what it is.) This tightness can make joints, like your knees, ache. Some people call these aches “growing pains.” Not stretching before and after exercise can make growing pains worse.

Sorry, that is incorrect.

The answer is True. During preteen and teen years, the body grows so fast that tendons and ligaments become tighter.

In your body, tendons connect muscle to bone. Ligaments are tough fibers that connect bone to bone, or cartilage to bone. (Touch the tip of your nose or ear, which are made of cartilage, to feel what it is.) This tightness can make joints, like your knees, ache. Some people call these aches “growing pains.” Not stretching before and after exercise can make growing pains worse.

Sorry, that is incorrect.

The answer is False. Actually, people grow fastest when they’re babies.

But, puberty is the second-fastest period of growth in life.

Correct!

Actually, people grow fastest when they’re babies.

But, puberty is the second-fastest period of growth in life.