Body Systems
What are the main organs of the respiratory system?
What are the Lungs
What is nicknamed the powerhouse of the cell?
The mitochondria
What is the first step in the scientific method?
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What is an indication of a chemical change?
a change in color
a change in odor
formation of bubbles
a precipitate
Smalllest unit of matter is called an?
Atom
What body system serves to protect, move, store minerals and make blood?
Skeletal System
What serves as a gate or boundary in the cell. "It lets certain things in and certain things out."
Cell membrane
What is a Hypothesis?
A Prediction
What is a physical property?
the formation of bubbles
An odor
A change in state of matter
A change in state of matter
What is the charge of an electron? Positive or negative?
negative
The heart is the main organ of what system?
Circulatory or Cardiovascular
Where is excess water and nutrients "stored" in the cell?
Vacoule
What do you call a scientific activity without something to compare. An experiment or An investigation
An investigation
what kind of change is breaking a stick in half?
Physical change
Chemical change
Physical change
What is outside an atom? In its energy levels?
Electrons
Which body system breaks down food for energy?
What is the Digestive System
What is one part of the cell theory? Name one.
a. All things are made up of cells.
b. The smallest unit of structure and function is the cell
c. All cells come from preexisting cells.
All predictions usually are right? True or False.
False
Burning a substance is what kind of reaction?
Chemical
What is the charge of a proton? Positive or negative
Positive
What is a function of the Integumentary System?
Temperature control and Protection
What do you call the jelly like substance within the cell. All organelles are just floating in this substance.
The Cytoplasm
How do you prove a prediction?
By Experimentation or Investigation.
What is color? Physical or chemical?
Physical
What is matter?
Anything that takes up space.