Body Systems

Which example is a system?

• nutrient

• rock

• motorized vehicle

• copper wire

Which statement best describes why the water cycle is a system?

• It moves water among Earth's water bodies, atmosphere, and land.

• The Sun warms water on the ground

• It has parts that work together

• Water in the atmosphere condenses to form drops

Which statement best describes your digestive system?

• It is not really a system since it has no parts

• It is a system within the system of the human body

• It is a system within the nervous system

• It is not a system within a system

Tags

NGSS.MS-LS1-3

Which phrase correctly describes one way that a model can be used by a scientist?

• to test a hypothesis

• to view Earth's interior directly

• to observe distant objects

• to record indirect evidence

What would a model of the human heart be useful for studying?

• how the heart interacts with the brain

• different kinds of animal hearts

• how the heart has changed over time

• the parts of the human heart

Which pair is a system and one of its parts?

• ocean and fish

• rock and mineral

• season and planet

• car and train

Tags

NGSS.MS-LS1-3

Which example is a system found in nature?

• bicycle

• subway

• water cycle

• car

The parts the body is made of and how the parts are organized is called a

• system

• structure

• model

The things a structure does is called its

• function

• mobility

• ability

A representation of a system is called

• figure

• structure

• model