Chem 1
The resistance to flow is called
viscosity
What do you call the elements that touch the zigzag line on a periodic table
metalloids
What cell part directs all cell activity
nucleus
What muscle is found only in the heart?
Cardiac
What body part carries blood away from the heart?
arteries
What happens to Chemical reactivity as you move from left to right on periodic table
decreases
An atom has the same number of protons and
electrons
What structure is in the small intestine to absorb nutrients?
villi
What muscle movement is used to get food from mouth to stomach?
peristalsis
Where are the most reactive metals found on a periodic table?
group 1
family
What state of matter has definite volume and shape
solid
What does the backbone protect?
spinal chord
What determines blood type?
marker molecules
What type of solid has particles arrange in a regular pattern
crystalline
Tarnishing is an example of what type of change
chemical
What process turns a solid directly into a gas
sublimation
What are most bones made of as an infant?
cartilage
What do white blood cells do?
fight diseases
Arthritis is a joint disease? yes or no
yes
What part of the atom is positively charges?
protons
How did Mendeleev organize the first periodic table
increasing atomic mass
What organ produces bile?
liver
What is the flap of tissue that forces blood to flow in one direction called?
valve
What do lymph nodes do?
trap disease causing bacteria