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Ms. Turk Science Unit 2 6th PowerPoint Presentation
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Ms. Turk Science Unit 2 6th - PowerPoint PPT Presentation


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Atomic mass, atomic number, protons, neutrons, electrons, metals, physical properties

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Presentation Transcript
slide1
It is Halloween. You are entering a haunted house.Get the right answer and you can continue.Make one mistakeand you are in trouble.
slide14

a. water

b. vinegar

c. Baking soda

Which has the physical property of a clear color and a sour taste?

slide16

a. water

b. vinegar

c. baking soda

Which has the physical property of a white color and odorless?

slide18

a. water

b. Carbon dioxide

c. Baking soda

Which has the physical property of a gas with colorless and sour taste?

slide20

a. water

b. vinegar

c. Baking soda

Which have the physical property of colorless and odorless?

slide22

Which will react the fastest when mixed with water?A A whole Alka-Seltzer tabletB An Alka-Seltzer tablet broken into four pieces.C An Alka-Seltzer tablet broken in half.D An Alka-Seltzer crushed into a powder.

slide24

Cody has a piece of Aluminum, which he mixes with acid to make a reaction. How can he speed up the reaction?A Put the Aluminum in the acid in one whole piece.B Fold the Aluminum in half before he puts it in the acid.C Ball the Aluminum up into a giant ball before he puts it in the acid.D Cut the Aluminum into tiny pieces before he puts it in the acid.

slide26

A scientist has two samples of the same chemical: one sample is a solid block, and the other sample is a powder. The scientist puts the solid block in a beaker of water and observes a reaction. What would most likely happen if the scientist placed the powdered sample into a different beaker of water? A No reaction would occur. B A completely different reaction would occur. C The same reaction would occur but at a faster rate.D The same reaction would occur but at a slower rate.

which one is an element on the chart a potassium b cholesterol c vitamin c d protein
Which one is an element on the chart?a. potassiumb. cholesterolc. vitamin Cd. protein
slide40

Bryson burns a piece of paper, and observes that the reaction gives off heat and light. What kind of reaction is taking place? A Exothermic, because heat is released.B Endothermic, because heat is released.C Exothermic, because heat is absorbed.D Endothermic, because heat is absorbed.

slide42

Antoinette mixes two chemicals together in a giant beaker, and observes thatthe reaction gets colder as it sucks in heat from the room. What kind of reaction is this?A Exothermic, because heat is released.B Endothermic, because heat is released.C Exothermic, because heat is absorbed.D Endothermic, because heat is absorbed.

slide44

Terrance puts a thermometer in a jar. It reads 20ºC. Then, he adds 2 chemicals to the jar. The thermometer changes to read 25ºC as the chemical reaction occurs.a. What kind of reaction is this?A Exothermic, because heat is released.B Endothermic, because heat is released.C Exothermic, because heat is absorbed.D Endothermic, because heat is absorbed.

slide46

Dejaputs a thermometer into a jar. It reads 30ºC. Then, she adds two chemicals to the jar. The thermometer changes to read 19ºC as the chemical reaction occurs.A.Exothermic, because heat is released.B Endothermic, because heat is released.C Exothermic, because heat is absorbed.D Endothermic, because heat is absorbed.

slide48
Which is a physical property?a. Blue Colorb. Reacts with acid to form a gasc. Reacts with base to form water
slide50
Which is a chemical property?a. Blue Colorb. Reacts with acid to form a gasc. Sour tastesd. Melting pointe. Density
nonmetals are a good conductors b bad conductors c materials where electrons flow freely
Nonmetals are a. good conductorsb. bad conductorsc. materials where electrons flow freely
slide62

What would you use to transfer electrical energy from a power plant to your house? A. metalbecause it has a high resistanceb. nonmetal because it has high resistancec. nonmetal because it has low resistanced. metal because it has a low resistance

slide64

What would you use to insulate (put around to keep safe) an electrical wire? A. metalbecause it has a high resistanceb. nonmetal because it has high resistancec. nonmetal because it has low resistanced. metal because it has a low resistance

slide72

This picture is of

  • Boron
  • Lithium
  • Helium
slide75

You are correct. You may continue. Remember the number on top is the atomic number that tells you the number of protons and electrons. The number of protons is always the same number as the number of electrons.

you are wrong
You are wrong.

The jack-o-lanterns come alive

and get you.