Lab it Up
Whenever you perform a lab, your chief concern must be
What is safety
100 cm
The amount of space an object takes up is its
What volume
A property that can be observed with the five senses
physical property
How close a measurement is to the true value,
What is accuracy
If you wanted to take the weight of a substance, you would use what lab tool?
Triple beam balance/Scale
Convert 1 meter into kilometers
0.001 km
If a the mass of a tennis ball is 5 grams and it takes up 15 cubic centimeters. How dense is it?
0.33 g/cm3
A property that can only be determined by undergoing a chemical change
Chemical property
Show this number in scientific notation:
5800
5.8 x 103
If you are unsure what to do in the laboratory with extra chemicals, you should...
Ask the teacher
Convert 5 meters into millimeters
5000 mm
What would you do to calculate the density of an object?
What is divide its mass by its volume.
Physical or chemical Change?
Burning wood
Chemical change
What type of graph should be used for showing a trend over time?
Line graph.
Name two pieces of glassware used to measure chemicals
Erylenmeyer flask, beaker, burrette, graduated cylinder.
Convert 5 weeks into days.
35 days
Define density
How much matter is in a given amount of space.
Physical vs Chemical change?
Dissolving sugar in water
physical change
X- axis of a graph runs this way
What is left to right
How many unknown digits does any measurement have?
One
Convert 56790 seconds into hours
15.78 hours
Given mass = 30 grams and Density = 20 g/mL, solve for volume.
1.5mL
Why is magnetism a physical property?
Doesn't undergo a chemical change. Can be tested and observed with the five senses.
7 days per week ; 24 hours per day ; 60 seconds per minute are all examples of
Conversion factors