Science
7th Grade
NGSS covered
Used 34+ times
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student tested the conductivity of four elements using an incomplete electrical circuit. When the element is placed in the circuit, the bulb lights up brightly, lights up dimly, or does not light up at all based on the element’s ability to conduct electricity. The table below shows the results of her investigation. Based on the results of the conductivity test, which element is classified as a metal?
Tags
NGSS.MS-PS1-2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Describe what luster means
Tags
NGSS.MS-PS4-2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Each year, the science club puts on a science show for the students in the elementary school. Luis is planning demonstrations to show properties of metals. For one property, he decides to use a ball of pizza dough and a rolling pin.
Which property of metals is Luis most likely going to demonstrate using these materials
luster
opacity
conductivity
malleability
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Metals are used in many products because of the characteristic properties that most metals share. Which properties of the metal tungsten make it useful in the thin, glowing filaments of light bulbs?
Tungsten is ductile, and opaque.
Tungsten is ductile, is malleable, and has a high luster.
Tungsten is ductile, has a high melting point, and is electrically conductive.
Tungsten has a high luster, has a low melting point, and is silver in color.
Tags
NGSS.MS-PS3-3
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Metals are shiny, good conductors, malleable, and ductile.
True
False
Answer explanation
Metals are shiny because they reflect light. They are good conductors of electricity and heat because they have free electrons that can move easily through the metal. Metals are malleable, meaning they can be hammered or rolled into thin sheets without breaking. They are also ductile, meaning they can be drawn into thin wires without breaking.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a metal can allow heat or electricity to flow through it, we say it is ___________.
lustrous
malleable
ductile
conductive
Tags
NGSS.MS-PS3-3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which describes elements in the first group of the periodic table?
alkali metals
alkaline earth metals
transition metals
radioactive metals
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