District Checkpoint Review
Quiz
•
Science
•
6th - 8th Grade
•
Practice Problem
•
Hard
+1
Standards-aligned
NIA HARRIS-FRENCH
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18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A student is implementing an investigation of physical properties using samples of metals, nonmetals, and metalloids. She used a battery, wires, and a bulb to test if each of the samples will complete the circuit causing the bulb to light. Next, she shined a bright light on each of the samples. Which physical properties is the student investigating?
Streak and hardness
Luster and conductivity
Streak and conductivity
Hardness and luster
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
A student is testing a silver rock sample with the lab equipment shown in the diagram above. The silver rock completes the circuit and lights the bulb. The student concludes the sample could be which of the following?
I
I,II
I,II,II
II, III
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Phosphorus, Lithium, and Fluorine are elements that are found on the Periodic Table. Students conduct several tests involving samples of these three elements at normal room temperature. Based on the physical properties of metals, nonmetals, and metalloids, which observation is correct?
Fluorine is malleable, and lithium conducts electricity.
Lithium is malleable and conducts electricity.
Phosphorus is malleable and conducts electricity.
All three elements are malleable and conduct electricity.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Students mixed 5g of sugar and 5g of salt together in a zip bag and sealed it. They recorded their observations below. No color change No temperature change No production of gas, fizzing, or bubbles No production of precipitate No production of light Did a chemical change occur? Justify your answer with reasonable evidence
Yes, because a new substance was formed
No, because nothing new was formed
Tags
NGSS.MS-PS1-2
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Table salt is a compound made from two elements: sodium and chlorine. Sodium:Silvery, soft, solid, metal, highly reactive
Chlorine: Greenish-yellow, gas, nonmetal, toxic, sharp odor
Table Salt: Whitish, solid, crystals, harmless, used for seasoning food Which statement best explains why the characteristics of table salt are so different from the characteristics of sodium and chlorine?
Salt is processed by the evaporation of seawater or mineral-rich spring water.
Salt is processed from salt mines because pure sodium does not occur in nature.
When sodium and chlorine combine, a physical change occurs and a new substance is formed.
When sodium and chlorine combine, a chemical change occurs and a new substance is formed.
Tags
NGSS.MS-PS1-2
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which column in the table includes only chemical changes?
A
B
C
D
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sodium is a highly reactive, soft metal. Chlorine is a poisonous, green gas. These elements combine to form sodium chloride (table salt), which is a white solid that can be safely eaten. Which claim is supported by the information?
Table salt is an element
Table salt is a mixture of elements.
Table salt is a compound.
Table salt has similar properties to sodium.
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-5
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