Lab Tools
During a science experiment, this is the correct way to smell a liquid or an unknown substance.
What is wafting
Observing gas bubbles when two unknown substances are combined.
What is evidence of a chemical change.
The triple beam balance
What lab tool is used to measure mass.
Its shape is curved or concave, not straight.
What is the miniscus.
Density = Mass/Volume
What is the formula for calculating density?
This tool is used to measure mass in grams.
What is a triple beam balance.
An ice cube melting is an example of this
What is NOT a chemical change (or what is a physical change).
Grams
What unit is used to measure mass.
This kind of measurement finds the volume of an irregular object.
What is water displacement?
M = 280 g
V = 20 cm3
14 g/cm3
This science tool is used to protect your eyes.
What are safety goggles.
The combination of milk and Red bull produces this.
What is the formation of a percipitate.
The anount of space an object occupies.
What does mass represent?
The formula for finding the volume of a solid prism.
What is length x width x height.
M = 799 g
V = 15 mL
D = 53.27 g/mL
This piece of science equipment allows you to see very small things upclose.
What is a microscope.
When two substances are combined, they produce heat.
What is an example of a temperature change.
large beam = 200g
medium beam = 40g
small beam = 5.5g
M = 245.5g
Subtract
What do you do with the two measurements of water in the graduated cylinder (before and after)?
M = 527 g
V = 83 cm3
D = 6.35 g/cm3
A ruler, a measuring tape and a meter stick.
What science tools are used to measure length?
The four reactions that prove that a chemical reaction has occured.
What are production of a gas, production of a percipitate, color change and temperature change.
large beam = 400g
medium beam = 0
small beam = .5g
M = 400.5g
An irregular object.
What is measured by water displacement.
M = 29.8 g
V = 3.7 mL
D = 8.05 g/mL