Unit 1
What is the scientific method?
A set of ordered steps that ensure we can explain phenomena with great confidence
What is matter?
Is everything that has mass and occupies space
What is the difference between chemical and physical properties?
Physical = depend on substance itself (color, smell, texture..)
Chemical = Depend on interaction of matter with other substances
24,327
2.4327 x 10ˆ4
What state is Ayla from?
New York
What is hypothesis?
An idea or explanation for something that is based on known facts but haven't been proved yet
How do you calculate density?
D = M/V
Steel because it's a mixture of more than 1 metal
46,600,000
4.66 x 10ˆ7
What is the name of Ayla's town?
Massapequa Park
What are the stages of the scientific method? There are 6
Observation - Hypothesis - Experimentation - Conclusion - Laws and Theories - Publication
What instruments do you use to calculate mass? And volume?
Mass = scales
Volume = graduated cylinder or similar instrument
What are two examples of a Heterogeneous mixture?
Answers can vary!
Examples: Oil and water, water and gravel
8.9 x 10ˆ1
89
What are the names of Ayla's dogs?
Nicky and Nala
What is scientific notation and why we do we use it?
It's a way of simplifying very large or small written numbers. We use it as a way of condensing information of very long equations (helpful for research and scientists)
What are the 3 changes of matter?
Solid, liquid, gas
What is the difference between solute and solvent?
Solute = component in a smaller proportion
Solvent = component in a larger proportion
0.0000000056
5.6 x 10ˆ9
How do you convert Kelvin to Celsius?
The temperature T in degrees Celsius (°C) is equal to the temperature T in Kelvin (K) minus 273.15
What does IS represent and what do we use it for?
IS = International System and we use it for measurement
What are two properties of liquids?
They have a fixed volume, but no definite shape
What is solubility?
The maximum amount of a solute that can be dissolved in a certain amount of solvent
8.2 x 10ˆ-7
.00000082
What are the names of 8 Santas reindeer?
Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Dunder, Blixem!