LAB SAFETY & EQUIPMENT
This piece of equipment is used to measure temperature.
What is a thermometer?
This variable is the one you change on purpose.
What is the independent variable?
Matter can exist as solids, liquids, and this third state.
What is a gas?
The substance that gets dissolved is called the ______.
solute, solvent, or solution?
What is the solute?
A soccer ball rolls across a field. This is an example of this because its position changes over time.
What is motion?
A force is defined as a push or a ______.
What is a pull?
Before heating a substance in a lab, you should wear these to protect your eyes.
What are safety goggles?
This variable is the one you measure.
What is the dependent variable?
Particles in a gas are generally packed closely together. True or False?
What is False?
The substance that does the dissolving is called the ______.
solute, solvent, or solution?
What is the solvent?
The SI unit for measuring distance is this.
What is the metre (m)?
The unit used to measure force is called this.
kelvin K, Kilograms Kg, Newton N
What is a newton (N)?
This microscope part is the lens you look through.
What is the eyepiece?
Variables that are kept the same throughout an experiment are called these.
What are control variables?
The change from a liquid to a gas is called this.
What is evaporation?
Salt dissolved in water forms this.
solute, solvent, or solution?
What is a solution?
Speed is calculated using this formula.
What is speed = distance รท time?
This force pulls objects toward the center of Earth.
What is gravity?
This microscope part holds the slide in place while viewing.
What is the stage?
A student tests how sunlight affects plant growth. The amount of sunlight is the ______ variable.
What is the independent variable?
DOUBLE JEOPARDY
This is the transfer of thermal energy from a warmer object to a cooler object.
heat, plasma, or evaporation
What is heat?
This separation technique removes sand from water using filter paper.
filtration, chromatography, or simple distillation?
What is filtration?
A car travels 120 m in 20 s. What is its speed?
What is 6 m/s?
The force that opposes motion when two surfaces rub together is called this.
What is friction?
What is the meniscus?
When measuring liquid volume, you should read the measurement at this part of the liquid's curved surface.
A data point that does not fit the pattern of the rest of the data is called this.
What is an anomaly (anomalous result)?
When most substances are heated, their particles move faster and the substance usually does this...contract, expand, or stay the same size
What is expand?
This technique separates different colors in ink.
filtration, chromatography, or simple distillation?
What is chromatography?
If two objects travel the same distance, the faster object takes ______ time.
What is less time?
FREE ANSWER - guess right and get double!
A longer lever increases the size of this.
What is the turning force?
A student points a microscope toward the sun to get more light. Why is this unsafe?
It can damage the eyes and the microscope.
A student repeats an experiment three times and calculates the mean result. Why is this useful?
It improves reliability and reduces the effect of random errors.
Explain why a gas can be compressed more easily than a solid.
Gas particles are far apart with empty spaces between them.
This separation method uses evaporation and condensation to separate water from dissolved salt.
filtration, chromatography, or simple distillation?
What is simple distillation?
A runner moves 240 m in 30 s. Calculate the speed.
What is 8 m/s?
A box is pushed right with 12 N and left with 5 N. What is the resultant force and direction?
What is 7 N to the right?