What is Science? Standards and Measurements
Types and States of Matter
Atoms, Periodic Table and Radioactivity
Interaction of Matter
Wild Cards
100
What are the three types of graphs? Describe them.
Bar graph, Line graph, and Pie chart. -Bar graph compares data. -Line graph shows data over time. -Pie chart show parts of whole.
100
What is the atomic number of carbon?
6
100
What are mixtures?
Mixtures are two or more substances that are not combined with each other and can be separated by physical means.
100
What is a molecule?
A neutral group of atoms joined by a conveyance bounce.
100
Can coffee be separated from water? How?
Yes, the coffee can be separated from the water by putting a filter in the funnel, and pouring the coffee with water in. Once it all goes through, the coffee stays in the filter, but the water passes through it, and stays in the funnel.
200
What are the four states of matter? Describe them.
Solid, liquid, gas, and plasma. -Solid has a definite shape and volume. -Liquid can change shape and has a definite volume. -Gas can change shape and volume. -Plasma can change shape and volume, is electrically charged and emits light.
200
Describe neutrons, protons and electrons.
Neutrons are located in the nucleus, do not have an electrical charge and are large. Protons are heavier and larger then electrons. They have a positive charge and are in the nucleus. Electrons are very light particles that have negative electrical charge and move around the nucleus.
200
What does it mean to be uniformed throughout?
To have a homogenous structure.
200
What is the difference between a polar and non-polar bound?
The difference is that in non-polar bound the electrons are shared equally, but in the polar bound they are shared unequally.
200
What happens when you mark a dot with permanent marker in paper (wrapped around a pencil), and put it in a cylinder with 2 centimeters of water?
The permanent market dot changes the color it originally had.
300
Describe each step of the scientific method.
Purpose: Question Hypothesis: Educated guess. In if, then format. Materials: Things you'll need. Procedures: Steps you take in order. Data: Observations using five senses. Conclusion: Summary of results.
300
How many levels of electrons have we studied?How many electrons are in each level?
There are 5 levels. Level 1: 2 Level 2: 8 Level 3: 18 Level 4: 32 Level 5: 50
300
What is the difference between heterogenous and homogenous? Give an example of each.
Heterogenous can go through different substances of phases, but the homogenous has the same uniform throughout. Example varies.
300
What are the symbols for an acid? A base?
Acid: H+ Base: OH-
300
Why are elements placed in a specific place on the periodic table?
... Because of the way they look and act.
400
What is the difference between pseudo science and scientific claim?
Pseudo science is represented scientifically but doesn't follow the scientific method, lacks evidence and cannot be tested. Scientific claim does follow the scientific method, has evidence and can be tested.
400
What are radio active elements?
Radio active elements are unstable isotopes and can change the amount of neutrons, protons, and electrons they have, creating a different atom.
400
When do physical changes occur?
Physical changes occur when an object or substance undergo a change that does not change their chemical composition.
400
From which to which number in the PH scale are acids and which are bases?
Acids: 0-7 Base:8-14
400
Who am I? I am a gas with an atomic mass of 16, and have 8 neutron
I am... oxygen
500
What is the formula for density?
D= m/v
500
What are the types of metals and non-metals?
Metals: -Alkali metals -Alkali-earth metals -Transition metals -Other metals Non-metals: -Halogens -Noble gases -Other metals
500
Name five physical properties and two chemical properties.
Physical: -Color -Mass -Shape -Odor -Solid, liquid, and gas -Hardness -Density -Melt/boiling point -Magnetism Chemical: -Flammability -Reactivity
500
What is the formula of baking soda?
NaHCO3
500
What is a parsec?
A parsec is an astronomical unit of measurement, that equals to 3.26 light years.
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