Quiz about 6th grade Science 1st 9 weeks review

Question 1

What is the smallest part of an element?

Accepted Answer

atom

Answer

compound

Answer

molecule

Question 2

Jane saw the letter P on a container in the science lab. Which element was MOST likely found in the container?

Accepted Answer

phosphorus

Answer

sodium

Answer

nitrogen

Question 3

Which item listed below is NOT considered an element?

Accepted Answer

water

Answer

calcium

Answer

phosphorus

Question 4

Which of the following examples most closely represents what it means to be an element?

Accepted Answer

A brick wall made from many identical bricks.

Answer

A salad made of lettuce, tomatoes, cucumbers, and dressing.

Answer

A gum ball machine with many different colors and sizes of candy inside

Question 5

Julian is using the chemical formulas for various substances to classify them as either a compound or an element. Which of the following should he identify as an element?

Accepted Answer

Co

Answer

CO

Answer

CO2

Question 6

Ryan is using the chemical formulas for various substances to classify them as either a compound or an element. Which of the following should he identify as a compound?

Accepted Answer

CO

Answer

Fe

Answer

Co

Question 7

Rebecca is using the chemical formulas for various substances to classify them as either a compound or an element. How should Rebecca classify Gold (Au)?

Accepted Answer

Gold is an element composed of a pure substance.

Answer

Gold is a compound composed of a blend of substances.

Answer

Gold is a compound composed of a pure substance.

Question 8

The instructions for a lab warned students to avoid putting Na in the liquid used during the experiment. What element should not be placed in the liquid?

Accepted Answer

sodium

Answer

nitrogen

Answer

silicon

Question 9

What kind of pure substance forms when two elements chemically combine and are represented by a chemical formula?

Accepted Answer

Compound

Answer

Mixture

Answer

Solution

Question 10

Which of the following is the smallest or most simple particle?

Accepted Answer

Element

Answer

Compound

Answer

Chemical

Question 11

Shelley has a balloon with a small amount of baking soda in it. She fits the open end of the balloon over a graduated cylinder containing some vinegar. As she lifts the end of the balloon, the baking soda pours into the vinegar causing bubbling and fizzing to occur. Marie observes the balloon begin to "fill" up. Based on these observations, which of these can Marie determine about the new substance formed by mixing baking soda with vinegar?

Accepted Answer

A chemical reaction occurred, producing a gas.

Answer

A chemical reaction occurred, producing a solid.

Answer

No chemical reaction took place.

Question 12

The Best Friend's Club uses "invisible ink" to write notes to each other. The invisible ink is actually lemon juice that is clear when it dries on paper, but turns brown when a club member holds a burning candle under the paper. Once it is heated, it is never invisible again. What type of change is occurring when the paper is heated?

Accepted Answer

chemical change

Answer

temperature change

Answer

physical change

Question 13

Which of the following is a chemical property associated with wood?

Accepted Answer

ability to burn

Answer

snapping when bent

Answer

having a rough surface

Question 14

Students are given a sample of an unknown material. They want to perform tests to determine its identity. Which test is MOST likely to change the sample into another material?

Accepted Answer

burning it in a flame

Answer

dissolving it in water

Answer

heating it until it melts

Question 15

Which answer choice correctly lists only elements?

Accepted Answer

N2, O2, Al, Zn

Answer

Cl, Na, CH3, Ne

Answer

H2O, Li, N, I2

Question 16

Which of the following lists contains an element followed by a compound that contains that element?

Accepted Answer

H --- H2O

Answer

CO2 --- C

Answer

NH3 --- He

Question 17

In the following chemical equation, how many different elements and compounds are represented? 4Fe + 3O2 --> 2Fe2O3

Accepted Answer

2 elements and 1 compound

Answer

3 elements and 1 compound

Answer

2 elements and 2 compounds

Question 18

A solid produced by a chemical reaction in solution that separates from the solution is called

Accepted Answer

a precipitate

Answer

a molecule

Answer

a reactant

Question 19

Rachel was researching the element silver, for her project about atoms. Silver is an element that is shiny, conducts electricity and is also malleable. What type of element is silver?

Accepted Answer

Metal

Answer

Metalloid

Answer

Nonmetal

Question 20

Randolph is performing a classification laboratory activity in his science course. He is looking at materials and classifying them as a metal or a nonmetal. Which of the following is the best list of physical properties of a metal?

Accepted Answer

shiny luster, highly malleable, highly ductile

Answer

dull luster, highly malleable, not ductile

Answer

shiny luster, unmalleable, highly ductile

Question 21

Dion is testing materials in science class trying to determine which materials are metals and nonmetals. One substance crumbles when hammered and it does not conduct electricity. What type of substance is it most likely?

Accepted Answer

Nonmetal

Answer

Metalloids

Answer

Metal

Question 22

Which of the following have properties of both metals and nonmetals?

Accepted Answer

metalloids

Answer

metals

Answer

non metals

Question 23

Luciana is trying to organize some materials by their physical properties. Which of the following would have a shiny luster, can conduct electricity and are malleable (can be shaped without cracking)?

Accepted Answer

metals

Answer

metalloids

Answer

nonmetals

Question 24

Philip is trying to classify materials by their physical properties. When he is observing materials that are found as a gas at room temperature, what type of substance is he most likely observing?

Accepted Answer

Nonmetal

Answer

Metal

Answer

Metalloids

Question 25

Students were given four unknown substances and asked to observe their characteristics. Their observations are shown in the table below:

Which of the unknown substances is MOST likely a metal?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 26

During an experiment, a student noticed that an unknown mineral could be scratched by quartz and scratch calcite. Based on the chart below, which mineral could the unknown substance NOT be?

Accepted Answer

feldspar

Answer

topaz

Answer

Corundum

Question 27

Sarah was taking a walk with her friends. She looked down and saw two unknown minerals. When she dragged them across the sidewalk, she noticed that they produced the same color mark, but one scratched the other. What conclusion could Sarah draw?

Accepted Answer

Their hardness is different, but their streaks are the same.

Answer

Their hardness and streaks are the same.

Answer

Their streaks are the same, but their luster is different.

Question 28

Which of the following minerals CANNOT be scratched by a piece of quartz or by a piece of apatite?

Accepted Answer

Topaz

Answer

Calcite

Answer

Feldspar

Question 29

Using the hardness scale below, which would be the hardness of a mineral that can be scratched by a penny but not by a fingernail?

Accepted Answer

3

Answer

2

Answer

3.5

Answer

4

Question 30

Which of the following is not a good characteristic to use to determine a type of mineral?

Accepted Answer

Shape

Answer

Hardness

Answer

Color

Answer

Luster

Question 31

A student finds that the mass of 25mL of an unknown liquid is 20.5g. What is the density of this substance?

Accepted Answer

0.82

Answer

1.40

Answer

0.72

Answer

1.82

Question 32

Marcie fills a graduated cylinder with 15.OmL of water. Paul finds the mass of a marble to be 2.21g, then drops the marble into the graduated cylinder. If the meniscus on the cylinder is now at 16.3mL, what is the density of the marble?

Accepted Answer

1.7

Answer

.70

Answer

1.9

Answer

1.50

Question 33

Determine the density in g/cm3 of a mineral that has a volume of 3.8 cm3 and a mass of 22.4 g.

Accepted Answer

5.89

Answer

5.60

Answer

5

Answer

4.89

Question 34

What is the mass of a piece of metal that has a volume of 4.22 cm3 and a density of 7.85 g/cm3?

Accepted Answer

33.1

Answer

33.8

Answer

45

Answer

.331

Question 35

Which of the following is a chemical property of iron?

Accepted Answer

rusting over time

Answer

melting when heated

Answer

conducting electricity

6th grade Science 1st 9 weeks review

40 questions

During a game, students were asked to select the correct symbol with the element. All of the following answers would be correct EXCEPT —

What is the smallest part of an element?

Jane saw the letter P on a container in the science lab. Which element was MOST likely found in the container?

Which item listed below is NOT considered an element?

Which of the following lists contains only elements and a reason why they are elements?

Which of the following examples most closely represents what it means to be an element?

Julian is using the chemical formulas for various substances to classify them as either a compound or an element. Which of the following should he identify as an element?

Ryan is using the chemical formulas for various substances to classify them as either a compound or an element. Which of the following should he identify as a compound?

Rebecca is using the chemical formulas for various substances to classify them as either a compound or an element. How should Rebecca classify Gold (Au)?

The instructions for a lab warned students to avoid putting Na in the liquid used during the experiment. What element should not be placed in the liquid?

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