Name one difference between a plant and an animal cell
Vaccuole, Chloroplasts, Cell Wall
Transport systems describe how substances enter and leave a.....
Cell
What subatomic particle do we find on the shell of an atom
electron
What is the name for the columns ( up and down)
groups
What is the law of conservation of energy?
Can not be created or distroyed
What part of the cell contains DNA
Nucleus
Osmosis is the movement of
water
What subatomic particles make up the mass of an atom
protons and neutrons
What does the elements period tell you about it?
number of shells
What is kinetic energy the energy of
movement
What part of the microscope are used to magnify?
Lenses
In Active Transport the substance goes from.... to.....
low to high concentration
What is an isotope
same number of protons different neutrons
What group are the Alkali metals
group 1
What kind of energy does fuel have
Chemical
If you were to calculate Image size what would the formula be?
Actual x magnification
What is a semi permeable membrane?
membrane that allows some substances to pass through but not all
How many shells would an atom with 21 electrons have
4
What happens to the reactivity as you go down group 7
becomes less reactive
What is the unit for power?
Watts
What is classification of organism that is usually unicellular and has no nucleus?
procaryote
How would you calculate percentage change in mass
Mass at end- mass at start divided by mass at start x 100
what kind of ion would an atom with 2 outside electrons make?
+2
Why do they use Argon in light bulbs?
so that the heated filament does not react with the air
What does each symbol in this equation represent
E=F x d
E= Work done
F= force
d= distance