# Grade 6 Science Test: Unit 1

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Questions: 18 | Attempts: 840

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This test is worth alot of your mark for unit one. You should know all the answers to the test from notes and studying. Have fun and good luck!

• 1.

### There are a few ice cubes laying on the patio table in Orlando, Florida. Ten minuites later I come back and the ice cubes are liquid. These ice cubes did what changes of state in those ten minuites I was gone?

• A.

Condensation

• B.

Melting

• C.

Freezing

• D.

Deposition

B. Melting
Explanation
The ice cubes changed from a solid state to a liquid state in those ten minutes. This process is called melting.

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• 2.

### At what point in a roller coaster ride does the cars have the most kinetic energy?

• A.

Beginning of the drop

• B.

End of the drop

• C.

Top of the loop

• D.

The Ending of the ride

B. End of the drop
Explanation
The cars have the most kinetic energy at the end of the drop because they have gained potential energy during the ascent and then converted it into kinetic energy as they accelerate downwards. As the cars reach the bottom of the drop, they have the maximum speed and therefore the most kinetic energy.

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• 3.

### Which of the following answers gives the best example of a liquid particles?

• A.

Evaporation

• B.

Children Playing tag

• C.

Children holding hands

• D.

Square Dancers

D. Square Dancers
Explanation
Square dancers can be seen as a good example of liquid particles because they move and flow together in a coordinated manner, similar to how particles in a liquid move and flow. The dancers form patterns and change positions, just like liquid particles do when they take the shape of their container. Additionally, the dancers can separate and come back together, which is similar to how liquid particles can disperse and then recombine.

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• 4.

### On a stormy day in Austin, Texas there are lots of clouds the vapour in the clouds turns into solid hail the size of golfballs. What change of state is this?

• A.

Sublimation

• B.

Freezing

• C.

Deposition

• D.

Evaporation

C. Deposition
Explanation
Deposition is the correct answer because it refers to the process in which a substance transitions directly from a gas to a solid without passing through the liquid state. In this scenario, the water vapor in the clouds condenses and freezes into solid hailstones, skipping the liquid phase. This change of state from gas to solid is known as deposition.

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• 5.

### What are the attractive forces like between the particles in a liquid?

• A.

Weakest

• B.

Weaker

• C.

Strong

• D.

Invincable

B. Weaker
Explanation
The attractive forces between particles in a liquid are weaker compared to those in a solid. In a liquid, the particles are more free to move and are not held together as tightly as in a solid. This allows the particles to slide past each other, giving liquids their ability to flow. The weaker attractive forces also contribute to the lower density and higher compressibility of liquids compared to solids.

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• 6.

### A Heating Curve plots what?

• A.

Date VS Temperature

• B.

Date VS Time

• C.

Time VS Attractive Forces

• D.

Temperature VS Time

D. Temperature VS Time
Explanation
A Heating Curve plots the relationship between temperature and time. It shows how the temperature of a substance changes over time as it is heated. The curve typically starts at a lower temperature, then gradually increases as heat is applied. As the substance undergoes phase changes, such as melting or boiling, the temperature remains constant until the phase change is complete. The curve then continues to rise until it reaches the final temperature. Therefore, the correct answer is Temperature VS Time.

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• 7.

### Which of the two states of matter does Condensation take place?

• A.

Gas to a Solid

• B.

Liquid to a solid

• C.

Solid to a Gas

• D.

Gas to a liquid

D. Gas to a liquid
Explanation
Condensation is the process in which a gas changes into a liquid. This occurs when the gas molecules lose energy and come closer together, forming liquid droplets. Therefore, the correct answer is "Gas to a liquid".

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• 8.

### Which of the following explain the particles in a gas?

• A.

Square Dancers

• B.

Children playing tag

• C.

Children Holding hands

• D.

A Roller Coaster

B. Children playing tag
Explanation
Children playing tag can be used as an analogy to explain the particles in a gas. In a gas, the particles are constantly moving and colliding with each other, just like children playing tag. The random movements and interactions of the children represent the kinetic energy and collisions of gas particles. This analogy helps to visualize the behavior of gas particles and understand concepts such as diffusion and pressure.

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• 9.

### Which state of matter takes the shape of the whole container its in?

• A.

Gas

• B.

Plasma

• C.

Liquid

• D.

Solid

A. Gas
Explanation
Gas is the state of matter that takes the shape of the whole container it is in. Unlike solids and liquids, which have a definite volume and shape, gas particles are not tightly packed and can move freely, filling the entire space available to them. This allows gas to expand and occupy the entire container it is placed in, taking its shape.

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• 10.

### Which to factors effect a object in the Kinetic energy process?

• A.

Mass

• B.

Motion

• C.

Mass and Motion

• D.

G-Force

C. Mass and Motion
Explanation
In the process of kinetic energy, two factors that affect an object are mass and motion. Mass refers to the amount of matter an object contains, and motion refers to the object's velocity or speed. The kinetic energy of an object is directly proportional to its mass and the square of its velocity. This means that as the mass or velocity of an object increases, its kinetic energy also increases. Therefore, both mass and motion play a significant role in determining the amount of kinetic energy an object possesses.

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• 11.

• 12.

• 13.

### A solid object has a ____________________ volume.

Constant
Explanation
A solid object has a constant volume because the volume of a solid object remains the same regardless of any changes in its shape or size. This is due to the fact that the particles that make up a solid are closely packed together and have a fixed arrangement, which does not allow for any significant changes in volume. Therefore, regardless of any external factors or conditions, the volume of a solid object remains constant.

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• 14.

### The particles in a ________________ object move the most out of all three states of matter.

Gaseous
Explanation
In a gaseous object, the particles have the highest amount of kinetic energy and are constantly moving in random directions. This is because the particles in a gas have enough energy to overcome the attractive forces between them, resulting in a high degree of freedom of movement. In comparison, the particles in a solid are tightly packed and have limited movement, while the particles in a liquid have more freedom of movement than solids but less than gases. Therefore, the particles in a gaseous object move the most out of all three states of matter.

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• 15.

### In a solid, the particles move slightlt in small _____________________.

vibrations
Explanation
In a solid, the particles are closely packed together and have strong intermolecular forces holding them in place. However, they still have some thermal energy which causes them to vibrate in fixed positions. These vibrations are very small and localized, allowing the solid to maintain its shape and structure.

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• 16.

### A transition from a Solid to a Gas is _____________________.

Sublimation
Explanation
Sublimation is the process in which a solid directly turns into a gas without passing through the liquid phase. This occurs when the temperature and pressure conditions are such that the solid particles have enough energy to overcome the attractive forces holding them together and transition directly into the gas phase. Therefore, the correct answer for a transition from a solid to a gas is sublimation.

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• 17.

### _________________________ is a transition from Gas to solid.

Deposition
Explanation
Deposition is the process in which a gas directly transforms into a solid without passing through the liquid phase. This occurs when the temperature of the gas decreases, causing the gas particles to lose energy and come together to form a solid. This can be observed in various natural phenomena, such as frost forming on a cold surface or snowflakes forming in the atmosphere. Deposition is the opposite of sublimation, which is the transition from solid to gas.

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• Mar 21, 2023
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• Apr 02, 2012
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