WorksheetsQSE1 Science Review
Total questions: 22
Worksheet time: 12mins
Students gathered the following materials. What are the students trying to investigate?
The students are trying to construct a circuit to investigate the conductivity of electricity.
The students are investigating whether the materials dissolve in water.
The students are investigating whether the objects will change states.
The students are constructing a circuit to investigate the density of the materials.
The diagram below shows a mixture of salt and water. After the students mixed the salt, it dissolved in the water and created a new substance. How can the students separate this new substance?
Use filter paper, the water will flow and the salt will stay on the filter paper.
Use a hot plate, the water will boil and become water vapor while the salt stays behind on the beaker.
Use a sieve, the sieve will hold the salt while the water flows to the beaker.
Wait for the salt to separate from the water after 20 minutes because salt is less dense than water.
Click the image to read the question.
F
G
H
J
Click the image to read the question.
A
B
C
D
Click the image to read the question.
F
G
H
J
Click the image to read the question.
A
B
C
D
The diagram above shows one container with oil and water and another with oil and a cork. Which diagram below shows what most likely would happen if oil, water, and the cork were all put in the same container?
5 Jars with 92* C water are set up with thermometers. 4 jars are wrapped equally with different material. One jar is kept unwrapped as a control. After 10 minutes the temperature is checked and noted in the above chart. Which property of the material is most likely being tested?
state of matter
Thermal energy insulation
Thermal energy production
ability to conduct electricity
Students observed the physical properties of four common objects. Which of these properties CANNOT be used to classify these four objects into two different groups?
magnetism
relative density to water
electrical conductivity
solubility
The table lists the ingredients of five different mixtures. In which mixtures do all the ingredients maintain their physical state?
Mixtures 3 and 4 only
Mixtures 1, 3, and 4
Mixtures 1, 2, and 5
Mixtures 2 and 5 only
A student made a mixture using equal amounts of salt and pepper. The salt grains were the same size as the pepper grains. What should the student do to most easily separate the pepper from the salt?
Use a pair of tweezers to remove each grain of pepper
Run a small magnet through the mixture to attract the pepper
Put the mixture of water and filter the pepper out of the water
Use a strainer with a fine wire screen to remove the pepper
A mixture of beads was placed in the container, as shown. The beads are of various sizes, and each one is made of plastic, glass, OR steel. The mixture would be easy to separate because all of the beads -
are less dense than water
are solids
have the same mass
are attracted to a magnet
Which change occurs when lemon juice is mixed with water?
The mass of the lemon juice decreases.
The water becomes a solid
The lemon juice dissolves and spreads out evenly in the water
The volume of the water decreases
For an investigation a student put 100 mL of water at room temperature into each of three beakers. Then the student added a coin, to the Beaker R, 3 g of a powdered drink mix to Beaker S, and 10 mL of lamp oil to Beaker T. The student stirred the contents of the beakers and then left them sitting on a lab table for 5 minutes. Which diagram shows what the student most likely observed in each of the beakers after 5 minutes?
A student combined powdered paint with water to make a small amount of a blue liquid paint mixture. The student left the paint mixture in an open container. Several days later the student found the container and observed that changes had occurred. What most likely happened to the mixture?
The container was empty after the mixture evaporated into the air.
The paint evaporated, leaving only clear water in the container.
The water evaporated, leaving only a dry blue solid in the container
The liquid paint mixture was lighter in color after some water evaporated
A student makes hot chocolate by mixing two scoops of hot chocolate powder into a mug of hot water. He does not finish his drink and leaves the mug sitting on the counter for the weekend. What does the hot chocolate in the mug most likely look like after the weekend?
The hot chocolate evaporated, leaving the water behind in the mug.
The mug is empty because the hot chocolate evaporated.
The water evaporated, leaving the dried hot chocolate powder in the mug.
The mug looks exactly the same.
An athlete prepared a water bottle filled with purple sports drink for her run. She added three scoops of powdered sports drink to the bottle and dissolved it in 500 mL of water. She decided it tasted too weak and added one more scoop of purple powder to the bottle. Which of the following most likely occurred when one more scoop of powdered sports drink was added?
The purple color became lighter.
The purple color became darker.
The color changed to blue.
The color did not change.
Emily conducts an experiment to compare the densities of cork and iron with water. She places a piece of cork and a small iron nail in a beaker filled with 100 mL of water, and she records her observations.
1. The piece of cork floats on water.
2. The iron nail sinks to the bottom of the beaker.
What can Emily conclude from her experiment?
Both the cork and the iron nail are more dense than water
Both the cork and the iron nail are less dense than water
The cork is more dense than water, and the iron nail is less dense than water
The iron nail is more dense than water, and the cork is less dense than water
A student makes a partial circuit by connecting a battery with a light bulb using wires. The student then completes the circuit using different materials to check if the light bulb glows, as shown in the setup and table. Which material can be classified as an electrical conductor?
iron paper clip
plastic spoon
rubber band
strand of wool
