Digestion
Watery liquid in your mouth is called______.
Saliva
What are the building blocks of the body?
Cells
Tiny living things that can make you sick:
Germs
System that helps you breathe:
Respiratory
Food is broken down in the ________.
stomach
Groups of tissues make what?
Organs
Tool used to see tiny organisms:
Microscope
System that moves blood:
Circulatory
Nutrients are absorbed in the _________.
intestines
The largest organ in your body is_________.
Skin
What did Anton van Leeuwenhoek discover using a microscope?
Bacteria
System that helps you move:
Muscular
Urine is stored in which organ?
The bladder
Cells build tissues, tissues build organs, organs build what?
Body systems
Very small living things you cannot see:
Microorganisms
Which system sends messages to your brain?
Nervous System
Which organ helps cleans the blood?
Kidneys