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Q 1/30
Score 0
All of the liquids in the jar are clear with a drop of food coloring in them to allow the layers to show. Which of the following would be a way to identify which layer is actually water?
120
Shake to mix the liquids, let them settle, then label the bottom layer as water.
Put additional food coloring in the jar and label the darkest layer as water.
Put additional water in the jar and see which layer becomes deeper.
Shake to mix the liquids, let them settle, and pick the top layer.
Q 2/30
Score 0
Which of the following statements is true?
120
Water is less dense than oil.
The plastic block is less dense than the grape and water.
The grape is more dense than the syrup and less dense than the water.
The cork is more dense than all of the liquids.
30 questions
Q.
All of the liquids in the jar are clear with a drop of food coloring in them to allow the layers to show. Which of the following would be a way to identify which layer is actually water?
1
120 sec
Q.
Which of the following statements is true?
2
120 sec
Q.
Students had 4 different clear liquids and added a drop of food coloring to each (each liquid had a different color added). After adding the food coloring, students poured all 4 liquids together and mixed them. Students allowed the liquids to settle and the above layers formed. How could the students determine which layer of liquid is water?
3
120 sec
Q.
A student classifies the shown items based on physical properties. Which property cannot be used in order to classify the objects into more than one group?
4
120 sec
Q.
A student mixes water with 4 different substances- salt, pepper, dish soap, and marbles. Which mixture would be easiest to separate using the strainer?
5
120 sec
Q.
A beaker with 200 mL of a solution made of water and sugar was sitting at 38 degrees celcius. A student added a small cupful of ice to the solution. Which properties of the solution would change as the ice melted?
6
120 sec
Q.
A student uses a set of headphones to listen to music. Which of these objects uses the same source on energy as the headphones?
7
120 sec
Q.
Which two samplescould be glass and saltwater?
8
120 sec
Q.
What is the difference in grams between the total mass of the liquid substances and the total mass of the solid substances used in the investigation?
9
120 sec
Q.
A student is given a beaker containing gravel and water. Which of these ways could the student NOT use to separate the gravel from the water?
10
120 sec
Q.
To recharge the battery for later use without lighting the bulb, which of the following switches should be closed?
11
120 sec
Q.
The fish appears to be closer to the surface than it really is. What causes this difference?
12
120 sec
Q.
Some students paint the inside of several boxes. They paint each box a different color. They observe that the inside of the box painted white looks brighter than the others. What is the most likely reason this box looks brighter?
13
120 sec
Q.
Which of the following best describes how the objects lens of this telescope helps a scientist observe the moon?
14
120 sec
Q.
Erosion is one of the processes involved in the formation of sedimentary rock. Which of these best describes the process of erosion?
15
120 sec
Q.
All of thse are related to the formation of oil or natural gas EXCEPT-
16
120 sec
Q.
Each school year for 30 years, the amount of rain that fell at a school was measured and recorded. Tracking rainfall over a long period provides the most information about which characterisitic of an area?
17
120 sec
Q.
What should be added to the diagram to better explain the water cycle?
18
120 sec
Q.
A student is looking for evidence that Earth is always rotating on its axis. Which of the following would provide the best evidence?
19
120 sec
Q.
If this day continues to be sunny, what will most likely happen to the length of the shadow from 2 P.M. to 4 P.M.?
20
120 sec
Q.
Which outer planet is closest to this astroid belt?
21
120 sec
Q.
Which observation describes this anole lizard interacting with the living elements in its environment?
22
120 sec
Q.
The container for a worm farm needs to have a lid, but the lid must be left partially open because worms require which of the following in order to surivive?
23
120 sec
Q.
Which suggestion involves interactions between two groups of living organisms?
24
120 sec
Q.
Based on this information, which two types of birds do not compete for food resources?
25
120 sec
Q.
What effect does the rapid growth of kudzu most likely have on an ecosystem?
26
120 sec
Q.
Based on observations of the pictures of these animals, which statement describes an advantage that only one of these animals has in obtaining food?
27
120 sec
Q.
How do structures such as whiskers and antennae benefit organisms?
28
120 sec
Q.
Which of these animals activities is most like the stage of the life cycle in which seeds are released?
29
120 sec
Q.
Which of these observations describes a learned behavior?
