A device that spins substances very quickly:
A)balance B)centrifuge C)desiccator

Which of the following tells you the number of protons or neutrons?
a) Atomic number
b) Mass number
c) Subatomic particles

Which of these parts doesn’t belong to a microscope?
a) stage
b) fine focus
c) coverall

What is a part of atom that hasn't got electrical carge?
a)proton
b)electron
c)neutron

Which unit represents large quantities of small things ?
a) pascal b) mole c) base unit

Is a device that determines the mass of something
a) desiccator
b) therrmometer
c) balance

Which of the following words is a process of one cell splitting into two or more cells?
a) Natural selection
b) Homeostasis
c) Cell division

Judy is carrying out some fascinating … into the causes of Parkinson’s disease.
a) progress b) study c) science

What allows the transmision of information in our body?
a) Spinal column
b) Cells
c) Bones
d) Nerves

If you add 100 ml of water, the…of sulfuric acid to water should be low.
a) excess b) solution c) reactant d) concentration

H2O is the … for water.
a) element symbol
b) electron shell
c) atomic radius
d) balance shell

The rapid reaction caused by mixing the two substances means it was a …
a) solvent b) catalyst c) solution d) product

Where do you look in the microscope?
a) ocular lens
b) stage
c) objetive lens.

Which energy is not known as renewable energy:
a) Solar Energy
b) Hydraulic energy
c) Nuclear energy
d) Biomass

Atoms link to other atoms through…, resulting from the strong attractive forces that exist between the atoms.
a) covalent bonds b) heat capacity c) chemical bond

The students used… to mix the substances in the beaker.
a) stirring rods b) mortars c) spatulas d) tongs

What is the substance that dissolves in a solvent?
a) Reaction
b) Solute
c) Concentration

What instrument is used in chemical analysis to measure as a function of wavelength?
a) Thermometer.
b) Spectrophotometer.
c) Centrifuge.

What allows us to move?
a) skeleton
b) muscules
c)bones
d) locomotor system

If the atom has more … than protons, it has negative charge.
a) neutrons b) molecules c) electrons d) isotopes