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8th Grade Science Benchmark Review
Quiz by Jennifer Davis
Track each student's skills and progress in your Mastery dashboards
A student pushes a 52 kg box across the floor with a net force of 65 N. What is the approximate acceleration of the box? Force = Mass x Acceleration
Using the Periodic Table, what two other elements that would have the same similar properties as Copper?
What name is given to the vertical (up and down)columns of elements on the Periodic Table?
What characteristic determines an element's chemical properties such as reactivity?
Which element is the least reactive: Sodium, Neon, or Chlorine
How many neutrons are in the nucleus of a Sodium atom with a mass number of 23?
What pair of elements has one nonmetal and one gas element?
If iron conducts electricity, then what other element is a conductor of electricity?
True or False: Metals are conductors and nonmetals are insulators of thermal energy.
How many total atoms are present in this chemical formula:
H3PO4
How many atoms are in this chemical formula :
C8H10N4O2
How many atoms are in this chemical formula :
HNO3
Chemical or Physical Change: A solid formed at the bottom of the test tube, creating a new substance
What statement best defines a chemical change has happened?
What describes a physical change?
A student measured the mass of a small cube to be 30 grams and the volume to be 15 cm3. The student then compared the density of the cube to be one of four different samples. Density =Mass/Volume
The diagram shows a toy sail boat in a stream in the opposite direction the stream is flowing. The wind is pushing the boat with 30N of force and the water is resisting with 15 N of force. What best describes the motion of the toy sail boat?
A ball is at rest on the ground. What best describes the forces acting on the ball?
What does 0 to 30 seconds represent on this graph?
A skateboarder pushes off a rail and skates backwards for a few seconds. What statement best describes the action-reaction pair in this situation?
What month is the Northern and Southern Hemisphere in?
What season is the Northern and Southern Hemisphere in?
What explains daytime to nighttime on Earth?
During which moon phases are the tides the highest?
During which moon phases are the tides the lowest?
Why does the moon remain in orbit around the Earth?
Ocean currents affect weather patterns by....
The water in the river erodes the side banks, causing the river to become...
When lines on a topographic map are close together, that means ...
The finding of glacier striations in the bedrock of South Africa that indicated that glaciers once moved across the continent and the presence of vegetation fossils on Antarctica that matched the vegetation fossils found on South Africa indicate...