Characteristics of Life
Most cells are so ____ we use a microscope to see them.
Small
On the periodic table, which element has an atomic number of 8?
Oxygen
What is the atomic number of Hydrogen?
1
Where is the slide placed on the microscope?
Stage
What is the basic unit of life?
Cells
What is the neutral subatomic particle in an atom?
Neutron
Negative and positive ions will ____ each other.
Attract
What is the 4x lens called?
Low objective lens
Name 3 groups of organisms
Accepted Answers:
Animal, plant, bacteria, fungi, and humans (\
What 2 parts of an atom give us the atomic mass (weight)?
Proton and Neutron
What are the isotopes of Carbon-12?
Carbon-13 and Carbon-14
Which focus moves the stage up dramatically?
Coarse Focus
What surrounds all cells?
Cell membrane
What part of an atom tells us the atom's identity and atomic number?
Proton
An element becomes a positive ion when it _____ an electron.
Loses
What is the 10x lens called?
Tissues are formed by the grouping of _____.
Cells
Changing the number of electron will affect an elements ______
Charge
Name this compound:
CCl4
Carbon tetrachloride
What power is the high objective lens?
40x