Phys./Chem. Changes
Metric Measurement
Atoms, Ele, Cmpds
States of Matter
Misc.
100
Is a rotting banana an example of a physical or chemical change?
What is chemical change
100
When you place a rock on a balance or scale, what are you measuring?
What is Mass
100
All element are composed of extremely small particles called______________.
What is Atoms
100
Particles of a gas move fast and _________
What is Expand
100
During photosynthesis, plants transform electromagnetic energy from the sun into energy they can use to make glucose. What kind of energy is this?
What is Chemical energy? (The potential energy stored in chemical bonds)
200
Dissolving sugar in water is an example of a __________change.
What is physical
200
When you put liquid nitrogen in a graduated cylinder to measure the milliliters, what are you measuring?
What is Volume
200
This substance cannot be broken down chemically into other substances are ____________.
What are Elements
200
What causes a liquid to change to a gas?
What is Adding Heat Energy
200
On the Periodic Table, the most reactive metals are found in Group _______.
What is ONE (1)
300
Would you consider the following a physical or chemical change? Water vapor in the clouds cool down and become liquid water.
What is physical change
300
What two things do you have to know to measure the density of an object
What is Mass and Volume (Density = Mass/Volume)
300
Pure substances are substances that always have the same chemical make up. What are two examples?
What are elements and compounds
300
A substance that has a definite volume but no definite shape is called a _____________.
What is a liquid?
300
Fluorine, chlorine, bromine, and iodine are part of a family in Group 17, called ___________.
What are Halogens?
400
During a chemical change a chemical reaction takes place, where the total mass of the reactants = the total mass of the products. What is this called?
What is Law of Conservation of Mass
400
If you go to Jupiter from Earth, what would happen to your mass and weight?
What is Mass would stay constant, Weight will increase because Jupiter is much larger than Earth.
400
H2O, CO2 and C12H22O11 are all examples of ______
What are Chemical symbols of Compounds
400
What holds elements together in a solid?
What is a Chemical Bond
400
The elements that do not ordinarily form compounds are the__________ __________
What are the Noble Gasses?
500
When ice absorbs energy and melts is it an exothermic or endothermic change?
What is Endothermic Change
500
Anything that has mass and takes up space (volume) is ___________.
What is Matter
500
Which particles in an atom have a negative electric charge
What is an electron
500
In which state of matter do the particles spread apart and fill all the space available to them?
What is a Gas?
500
When elements and compounds are mixed together but not chemically, they are called ____________.
What is a mixture?
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