Science Mid-Term Studying Quiz

What devices are used to measure mass, volume, density, and weight?

For the pendulum experiment what were the Independent and dependent variables?

Scientific theory is what scientists predict to happen in the future.

How many significant figures are in 0.57?

Using sig figs, how would you solve 26.9 divided by 3?

Percent error is: predicted-true value ------------------------------ true value

Protons add [blank_start]one[blank_end] amu to the atom. Neutrons add [blank_start]one[blank_end] amu to the atom. Electrons add [blank_start]no[blank_end] mass to the overall atom.

Properties of metalloids include-

What is the last part of the brain to develop?

Three methods used to avoid animal-testing?

solutions contain a solvent dissolved in a solute

molecular compounds in water conduct electric current

a characteristic property of a solution is that it can scatter light

brass is a solid dissolved in a solid

shows the ratio of atoms in a compound

Dalton thought the atom was a condense sphere

...thought the atom was like a watermelon (scattered electrons)

Rutherford said the atom was like....

Bohr said the atom had a nucleus filled with protons and neutrons with electrons orbiting around the entire nucleus