Laboratory & Chemical Safety

Science – A Way Of Thinking Measurement

Classification Of Matter

Atomic Structure

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A Way Of Thinking – 10 Points

QUESTION:

•This is the statement that scientists use to clearly share what they expect to find out during their experiment.

ANSWER:

•(What is a hypothesis?)

A Way Of Thinking – 20 Points

QUESTION:

•This is the traditional model of how to conduct scientific inquiry.

ANSWER:

•(What is the scientific method?)

A Way Of Thinking – 30 Points

QUESTION:

•The variable you are going to change in the experiment.

ANSWER:

•(What is the independent variable?)

A Way Of Thinking – 40 Points

QUESTION:

•This does not change throughout the experiment.

ANSWER:

•(What is a control?)

A Way Of Thinking – 50 Points

QUESTION:

•A description of a natural event or thing shown to occur again and again under certain conditions.

ANSWER:

•(What is a law?)

Measurement– 10 Points

QUESTION:

•The measure of the amount of matter in an object.

ANSWER:

•(What is mass?)

Measurement– 20 Points

QUESTION:

•The method scientists use to write very large and very small numbers.

ANSWER:

•(What is scientific notation?)

Measurement– 30 Points

QUESTION:

•The metric scale for absolute temperature.

ANSWER:

•(What is Kelvin?)

Measurement– 40 Points

QUESTION:

•Type your question in here relating to Topic 2. As the Points get higher make questions harder.

ANSWER:

•(type answer here)

Measurement– 50 Points

QUESTION:

•This is the prefix for a base unit (i.e. meter) with a numerical value of 109 (1,000,000,000).

ANSWER:

•(What is giga-?)

Classification Of Matter – 10 Points

QUESTION:

•Two or more substances that are combined physically .

ANSWER:

•(What is a mixture?)

Classification Of Matter – 20 Points

QUESTION:

•This has a definite volume but not definite shape.

ANSWER:

•(What is liquid?)

Classification Of Matter – 30 Points

QUESTION:

•The movement of particles from an area of high concentration to an area of low concentration.

ANSWER:

•(What is diffusion?)

Classification Of Matter – 40 Points

QUESTION:

•A change of state from a gas to a liquid.

ANSWER:

•(What is condensation?)

Classification Of Matter – 50 Points

QUESTION:

•This is the mass of one molecule of a substance.

ANSWER:

•(What is molar mass?)

Atomic Structure – 10 Points

QUESTION:

•The number of protons in an atom’s nucleus.

ANSWER:

•(What is the atomic number?)

Atomic Structure – 20 Points

QUESTION:

•These two particles make up the nucleus of an atom.

ANSWER:

•(What are protons and neutrons?)

Atomic Structure – 30 Points

QUESTION:

•Protons, neutrons, and electrons have these kind of charges.

ANSWER:

•(What is positive (+), neutral, and negative (-)?)

Atomic Structure – 40 Points

QUESTION:

•When an atom loses electrons, the atom becomes positively charged. This atom is now a positively-charged ion.

ANSWER:

•(What are cations?)

Atomic Structure – 50 Points

QUESTION:

•The Danish scientist that suggested that the outer orbits determined the atom’s chemical properties as well as had a “model” named after him .

ANSWER:

•(Who is Niels Bohr?)

Laboratory & Chemical Safety – 10 Points

QUESTION:

•The first place to look for chemical safety information.

ANSWER:

•(What is the label of the container?)

Laboratory & Chemical Safety – 20 Points

QUESTION:

•This is the range for hazard ratings.

ANSWER:

•(What is 0 to 4?)

Laboratory & Chemical Safety – 30 Points

QUESTION:

•Gives workers and emergency personnel information about the proper way to handle or work with a certain substance.

ANSWER:

•(What is the Material Safety Data Sheet (MSDS)?)

Laboratory & Chemical Safety – 40 Points

QUESTION:

•Indicates the likelihood of the substance to vaporize, ignite, and burn.

ANSWER:

•(What is flammability?)

Laboratory & Chemical Safety – 50 Points

QUESTION:

•Indicates the likelihood of the substance to release energy by chemical or explosion.

ANSWER:

•(What is reactivity?)