a body system that controls and coordinates all body activities through electric impulses/messages between brain, spinal cord and nerves.

• endocrine system 
• nervous system
• nerve
• neuron

Tags

NGSS.MS-LS1-3

main organ of the nervous system. protected by the skull, and made of neurons, it is the control center for all actions, thoughts and emotions.

• brain
• electrical impulse
• gland
• heart

Part of the nervous system made of the brain and spinal cord.

• central nervous system
• peripheral nervous system

Part of the nervous system made of the nerves that are not part of the brain or spinal cord.

• central nervous system
• peripheral nervous system

Tags

NGSS.MS-LS1-3

The space between 2 neurons is called the

• dendrite
• axon
• node of Ranvier
• synapse

Which is NOT an organ of the urinary system?

• kidney
• bladder
• ureter
• liver

If your pee is light or pale yellow, it means that:

• You are hydrated
• You're dehydrated
• You don’t have enough yellow food dye in your diet
• You aren’t getting enough sun

Urine is made of:

• Water and nutrients
• water and lemonade
• everything you drank that day
• water and waste products 

What very important job do kidneys have?

• The make urine
• To filter waste out of the blood
• All of the above
• None of the above 

What is the primary function of the urinary system?

• Breaking down food so it can be used by the body
• Giving the body support and strength
• Removing waste and excess fluid from the body
• Turning oxygen into usable energy through respiration