Explain how you would measure the volume of this stone?
Graduated cylinder and overflow can
How do you test for a base?
Litmus test - red becomes blue
Which of these structures is not found in an animal cell?
Mitochondria
Cell membrane
Cell wall
Nucleus
How much oxygen is in inhaled air?
21%
What two letters are the name of the international system of units for measurement?
SI Units
Where is the atomic number on a periodic table?
On the top
Give 2 functions of the liver
Breaks down fat, produces bile, regulates nutrients in the bloodstream
What pH number are bases?
pH 8-14
What is a solvent?
The liquid in which a solute is dissolved
How do you test for oxygen?
You place a glowing splint in test tube
What substance is used to test for starch?
Iodine
What are isotopes?
Atoms with the same number of protons but different numbers of neutrons
In which organ is water absorbed?
The large intestine
Amylase breaks down starch into...
maltose
How do particles in a solid move?
They vibrate
In an atom, what subatomic particle orbits the nucleus?
Electron
Speed = ?
distance / time
What is the difference between velocity and speed?
Velocity = speed in a certain direction.
What happens in an exothermic reaction?
Products have less energy than reactants
What is matter?
Anything that takes up space and has mass
What are sex cells also called?
Gametes
What is the function of the pancreas?
Makes enzymes
What part of the cell is essential for photosynthesis?
Chloroplasts
What pH number are acids?
pH 1-6
What is the SI unit of density?
g/cm3
Which of these blood vessels have valves: artery, vein, capillary
Vein
Density = ?
Mass / Volume