Week 4 Vocabulary Review

What is the main function of the circulatory system?

• To help us breathe

• To circulate blood through the body

• To digest food

• To control movement

Answer explanation

The main function of the circulatory system is to circulate blood through the body, delivering oxygen and nutrients to cells while removing waste products. This is essential for maintaining overall health and function.

What does the word "concentrate" mean?

• To sleep

• To focus all one’s thoughts or efforts on

• To run fast

• To eat quickly

Answer explanation

The word "concentrate" means to focus all one’s thoughts or efforts on something. This definition aligns with the correct answer choice, distinguishing it from unrelated options like sleeping or running fast.

Which word describes a section of the heart?

• Chamber

• Valve

• Crescent

• Capacity

Answer explanation

The word 'Chamber' refers to a section of the heart, specifically the four main areas: the left atrium, right atrium, left ventricle, and right ventricle. Other options like 'Valve' and 'Capacity' do not describe sections.

What is figurative language?

• Language that is always true

• Language that cannot be taken literally

• Language used in science only

• Language spoken in another country

Answer explanation

Figurative language refers to expressions that convey meanings beyond the literal interpretation. Therefore, the correct choice is 'Language that cannot be taken literally', as it captures the essence of figurative language.

What is the function of a valve in the heart?

• To pump blood

• To prevent blood from flowing backward

• To measure blood pressure

• To clean the blood

Answer explanation

The function of a valve in the heart is to prevent blood from flowing backward, ensuring that blood moves in the correct direction through the heart and into the arteries.

What does it mean to convert a measurement?

• To erase it

• To express it in a different unit

• To make it longer

• To add numbers

Answer explanation

To convert a measurement means to express it in a different unit, such as changing inches to centimeters. This process allows for easier comparison and understanding of measurements in various contexts.

Which unit would you use to measure the length of a pencil?

• Kilometer

• Centimeter

• Liter

• Kilogram

Answer explanation

The length of a pencil is best measured in centimeters, as it is a suitable unit for small lengths. A kilometer is too large, while a liter measures volume and a kilogram measures weight.

What does "capacity" mean?

• The weight of something

• The maximum amount something can contain

• The speed of something

• The color of something

Answer explanation

'Capacity' refers to the maximum amount something can contain, making it the correct choice. It does not relate to weight, speed, or color.

Which phase of the moon is when the entire lit side is visible?

• Crescent Moon

• Full Moon

• New Moon

• Half Moon

Answer explanation

The Full Moon phase occurs when the entire lit side of the moon is visible from Earth, making it appear fully illuminated. In contrast, the Crescent, New, and Half Moon phases show only partial illumination.

What happens during a solar eclipse?

• The sun disappears forever

• The moon passes between the earth and the sun, blocking sunlight

• The earth moves closer to the sun

• The stars become brighter

Answer explanation

During a solar eclipse, the moon passes between the Earth and the sun, blocking sunlight. This phenomenon does not cause the sun to disappear forever, nor does it affect the distance of the Earth to the sun or the brightness of stars.