Safety
Running in the classroom is?
Never permitted
Which of the following statements is true about scientific theories?
Scientific theories summarize patterns in nature
What are the building blocks of all matter?
Atom
Dimensional Analysis-
Convert 12,345 mm into km.
12,345 s|1 hr|1 day|1 yr = 12,345 =0.023 years
|60 s|24 hr|365 days 525,600
Metals
Most metals are ductile,
lustrous,
good conductors of heat and electricity
Follow the teacher's instructions
The type of graph used to show how a part of something relates to the whole is called?
Circle graph
What are the parts of the Atom?
Electrons on the out side of the Atom.
Protons and Neutrons on the inside of the Atom.
Convert 1234mm into feet.
1234 mm|0.001 m|3.28 ft = 4.047 =4.05 ft
|1 m|1 m
Metaloids
Semi-conductors,
some properties of metal not all.
If the teacher is injured or not conscious?
Get assistance
How do scientists who speak different languages make their data understandable to one another?
They all use SI. or Standard International-Units
Proton
Positive charge,
also can determine the atomic number,
added with the neutrons to get the mass number.
Convert 32 years into hours.
32 yr |365 days|24 hr =280,320 hrs
|1 yr|1 day
Nonmetals
Dull,
brittle,
poor conductors
When carrying sharp objects in the classroom?
Carry the point down towards the floor
A measurement must include both a number and a(an)
SI Unit
Electrons
Negatively charged,
on the outside of the atom,
Electrons in the outermost are call valence electrons,
can be used to determine atomic number.
Convert 35 inches into meeters.
35 in|2.54 cm|0.01 m = 0.889m
|1 in|1 cm
Periodic Table
Organized by atomic number,
row left to right,
periods up and down
If you are injured in the classroom?
Notify the instructor immediately
What happens when the data in an investigation do not support the original hypothesis?
You modify or change the process -- redesign your experiment -- retest
Neutrons
No charge,
added with protons to determine the mass number
inside the nucleus.
Convert 120 ft/min into km/hr.
120 ft| 1 mile|1.61 km| 60 min = 11592 = 2,195 km\hr
|5280 ft|1 mile|1 hr 5280
Types of elements.
Metals,
metalloids,
non-metals