Classifying Matter
This classification of matter cannot be broken down by physical or chemical means into simpler substances.
Element
the ability for a material to allow the transfer of electrical or thermal energy is known as...
Conductivity
Gold melting into a liquid to be molded into a beautiful shield is an example of a (Physical / Chemical) change?
Physical
Convert 400 g into kg. (INCLUDE UNITS)
0.4 kg
How many ostriches are there in 12 flocks (1 flock = 5 ostriches)
60 ostriches
Carbon dioxide (CO₂) and table sugar (C₁₂H₂₂O₁₁) fall under this category of matter because their elements are chemically bonded in fixed ratios.
Compounds
Which of the following is an example of a physical property?
Reactivity ; Ductility ; Combustibility
Ductility
What is the fundamental difference between a physical change and a chemical change?
Whether or not the chemical identity has been changed. (If yes, chemical; if no, physical).
Convert 0.52 mL into L.
0.00052 L
A block of metal has a mass of 200 g and a volume of 50 cm³. Calculate its density. (Include correct units).
4 g/cm3
Blood, coming from an open cut. What type of matter?
Homogeneous mixture.
Which of the following is a chemical property?
Luster , Density , Flammability , Malleability
Flammability
All changes of state are examples of Physical changes OR Chemical changes?
Physical Changes
Draw a single target with four dots, expressing High Precision but Low Accuracy.
(Should show four dots close together but not close to the Bullseye)
A sample of liquid has a density of 1.2 g/mL and a volume of 250 mL. Calculate its mass. (Include correct unit)
300 g
Sand and water. What type of matter?
Heterogeneous mixture
The ability for a material to be stretched into a wire is known as...
Ductility
Setting a piece of paper on fire is an example of a (Physical / Chemical) Change?
Chemical
Convert 4,500 micrograms into centigrams.
0.45 cg
How many days are in 23,500,200 seconds? (round to the nearest day)
272 days
Stainless steel (an alloy made by physically combining multiple metals, such as iron, chromium, and nickel. What type of matter?
Homogeneous Mixture
the ability for a material to be hammered into a sheet is known as...
Malleability
The change of state which occurs from solid going straight to a gaseous form is known as...
(Double points if you can list an example)
Sublimation
Convert 0.0123 kilometers into picometers
How many millimeters are in 25 inches? (1 inch = 2.54 centimeters)
63.5 cm --> Final Answer: 635 mm