WorksheetsNew Stuff from Old Stuff
Total questions: 20
Worksheet time: 16mins
A scientist has two containers. Inside each container is a blue liquid. The liquids are substances. What can the scientist do to help find out whether these two liquids are both the same substance?
(Scientific Principal #1)
Measure the density of the two liquids and compare the densities.
Weigh each liquid and compare the weights.
Measure the volume of each liquid and compare the volumes.
Measure the temperature of each liquid and compare the temperatures.
Which one of the following is a substance?
(Scientific Principle #2)
Soda contains a large amount of sugar. Why can't it be seen in the liquid?
(Scientific Principle #4)
The sugar has a chemical reaction with the soda.
The sugar dissolves in the soda.
The sugar is taken out of the soda.
The sugar was invisible before it was added to the soda.
You find a clear gem that is made of one substance. What could you do to identify whether the gem is a diamond?
(Scientific Principle #5)
Measure its length and compare it to the length of other gems, including diamonds.
Determine its shape and compare it to the shape of other gems, including diamonds.
Determine its melting point and compare it to the melting point of other gems, including diamonds.
Measure its mass and compare it to the mass of other gems, including diamonds.
Which is the least dense material?
(Scientific Principle #7)
grape
syrup
oil
cork
We can measure how easily a solute will dissolve in a certain solvent. This measurement is called _______
solubility
solvation
solution
solvent
10.0 ml
15.0 ml
20.0 ml
25.0 ml
A scientist has two containers. Inside each container is a blue liquid. The liquids are substances. What can the scientist do to help find out whether these two liquids are both the same substance?
Measure the density of the two liquids and compare the densities.
Weigh each liquid and compare the weights.
Measure the volume of each liquid and compare the volumes.
Measure the temperature of each liquid and compare the temperatures.
A student finds two green powders that look the same. He wants to figure out if the two powders are the same or different substances. Which of the following is the best method to use?
Measure the mass, volume, and temperature of each powder and compare.
Combine both green powders and see if there is a chemical reaction.
Mix the two green powders together and then test the properties.
Determine the density, solubility, and melting point of each powder and compare.
