A racecar company is testing out a new car and put the distance and time in a table for each test trial.
The racecars average speed is _______ Km/m
1 point
1
Question 2
2.
What is the difference between the subatomic particles in two different atoms of Aluminum (Al), with one having an atomic mass of 27 and the other having an atomic mass of 30?
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1
Question 3
3.
American bullfrogs are the most common frog in the United States. Bullfrogs primarily eat on spiders and grasshoppers, but are occasionally known to eat crawfish as well. Some predators of the bullfrog are water snakes, foxes, and egrets. Drag and drop the correct predators and prey to their correct spots.
Other Answer Choices:
crawfish
Egret
Spiders
Fox
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1
Question 4
4.
What is the difference between the subatomic particles in two different atoms of Aluminum (Al), with one having an atomic mass of 27 and the other having an atomic mass of 30?
1 point
1
Question 5
5.
The models above show an atom of Fluorine and an atom of Aluminum. Based of the models, Fluorine is _______ reactive than Aluminum because it has _______ valence electrons.
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1
Question 6
6.
One of the properties that makes copper, Cu, useful for household wiring is its ability to conduct electricity. Which other elements are most likely to conduct electricity similar to copper?
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1
Question 7
7.
The names and chemical formulas of six substances are shown in the chart. Which substance listed is made up of the most atoms?
1 point
1
Question 8
8.
Students in an eighth grade science class combined a liquid and an unknown powder and recorded their information in a table. Which observations indicate that a chemical reaction has occurred.
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1
Question 9
9.
Students graph the motion of multiple objects. Select all the areas that constant speed is occurring.
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1
Question 10
10.
Sir Isaac Newton came up with three laws of motion. Newton used them to investigate and explain the motion of many physical objects and systems, which laid the foundation for classical mechanics. Drag each law to its corresponding picture.