Unit 1 EOG review
Quiz
•
Science
•
6th - 8th Grade
•
Hard
+1
Standards-aligned
Crystal McGaha
Used 9+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these BEST describes an atom?
A particle of matter that carries an overall positive charge.
A particle of matter that is formed by the bonding of two or more molecules.
The smallest particle of an element that shows all the properties of that element.
The smallest particle of an element that can be broken down further to form molecules.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A student performs an investigation to determine the properties of an iron nail. The list shows her findings:
The nail can rust.
The nail is denser than water.
The nail is very hard.
The nail can be bent.
Which statement is correct about the student's findings?
Rusting is a physical property of iron.
Hardness is a chemical property of iron.
Rusting and bending are chemical properties of iron.
Density and hardness are physical properties of iron.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A rise in the temperature inside a kitchen means that there is an increase in the –
average size of the air molecules.
number of the air molecules.
average velocity of the air molecules.
density of the molecules.
Tags
NGSS.MS-PS1-4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements describes a difference between a mixture and a pure substance?
The density of a mixture can change with temperature, but the density of a pure substance cannot change.
The composition of a mixture can vary from sample to sample, but the composition of a pure substance is always the same.
A mixture has a specific melting point, while the melting point of a pure substance can vary.
A mixture tends to be homogeneous, while a pure substance tends to be heterogeneous.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following do water (H2O), rust (Fe2O3), and salt (NaCl) have in common?
Water, rust, and salt are elements
Water, rust, and salt are heterogeneous mixtures
Water, rust, and salt are homogeneous mixtures
Water, rust, and salt are compounds
Tags
NGSS.MS-PS1-1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
From the list below, identify which situation(s) contain chemical changes.
I) A pot of water is being heated on a stove. Bubbles form and condensation appears on the lid of the pot.
II) A translucent, blue copper (II) sulfate solution is mixed with water and changes to a translucent lighter blue color.
III) Ammonium nitrate solid in added to water and the temperature drops significantly.
IV) Red and blue paint are mixed together and the color purple appears.
I and II
III only
II, III and IV
I, II and III
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the table, these four models all represent molecules. One model is composed of two atoms of the same element. That is model
Tags
NGSS.MS-PS1-1
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