Evidence for Chemical Change
Dissolving salt into water is an example of a chemical change. True or false?
False.
You can separate the two by boiling the water away.
Atom
The smallest particle of an element; made of electrons, protons, and neutrons.
(as long as you got the gist of it).
Is the air we breath an example of an element or a compound?
A compound.
The chemical symbol for this element is Au. What is it?
Gold.
What do you call a cow with no legs?
Ground beef.
1K Bonus points!
True or false, a chemical change is easily reversed.
False.
Compound
A new substance with unique chemical and physical properties formed when two or more elements are chemically bonded during chemical reaction.
(as long as you got the gist of it).
Is a bar of gold an example of an element or a compound?
An element.
What is the chemical symbol for Potassium?
K
(found in Period 4, and Group 1A) Atomic number 19.
Draw a picture of a panda bear doing a backflip on a trampoline.
Teacher decides.
True.
Element.
A pure substance composed of the same atom throughout.
(as long as you got the gist of it).
Is salt an element or a compound?
A compound.
Double points!!
The atomic number of this element is 42. What is it?
Molybdenum, Mo.
Double points!!
What does a baby computer call it's father?
"Data"
Double points!!
What is one example of a chemical change. Briefly explain how you know.
Most complete answer gets double points.
Chemical change
A change that involves one substance being pulled apart or combined with another substance to form a completely different substance.
(as long as you got the gist of it).
Is water an element or a compound?
A compound.
How many protons does Sulfur, S, have?
16.
Double points!!
In the movie, Frozen, what is the name of the Elsa's snowy friend?
Olaf
Spin the wheel!!!
What is the name of the solid formed in a solution?
A precipitate.
Spin the wheel!
Physical change
A change to a substance that occurs that occurs without forming a new substance, such as change in size or state of matter.
(as long as you got the gist of it).
Is chlorine an element or a compound?
An element.
Spin the wheel!
This element is in Period 2, and Group 7A. What is it?
Fluorine, Fl.
What is the only letter not found on the periodic table?
"J"
Triple points!!!