Science Semester 2 - Changing Matter
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What state of matter consists of a fixed shape and volume.
About This Quiz
This quiz, titled 'Science Semester 2 - Changing Matter', assesses understanding of physical changes in matter, states of matter, and processes like evaporation. It is designed to enhance students' grasp of basic physical science concepts, crucial for progressing in scientific education.
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- 2.
What state of matter consists of a fixed volume but their shape depends on their container?
Explanation
Liquids have a fixed volume, meaning they do not compress or expand, but their shape can change depending on the container they are in. Unlike solids, which have a fixed shape, liquids can take the shape of their container, making them adaptable and able to flow. This is why liquids are often found in containers and can be poured or transferred easily.Rate this question:
- 3.
What state of matter consists of no fixed shape or volume. They assume the shape of the space.
Explanation
Gas is a state of matter that has no fixed shape or volume. Unlike solids and liquids, gases are able to fill the space they occupy completely, taking on the shape of their container. Gas particles are in constant random motion and have weak intermolecular forces, allowing them to move freely and spread out to fill any available space. This makes gas a highly compressible state of matter, as its volume can be easily changed by altering the pressure or temperature.Rate this question:
- 4.
What happens to ice when it is added to hot water. It slowly ____________.
Explanation
When ice is added to hot water, it slowly melts. The heat from the hot water causes the ice to absorb energy, which increases the temperature of the ice. As a result, the ice changes from a solid state to a liquid state, turning into water. The process of melting is gradual, as the heat is transferred to the ice molecules, causing them to break their bonds and transition into a liquid form. Thus, the ice slowly melts when added to hot water.Rate this question:
- 5.
Physical changes occur when a substance receives or loses _______________.
Explanation
Physical changes occur when a substance receives or loses energy, specifically heat. This is because heat is a form of energy that can cause the particles in a substance to move faster or slower, leading to changes in its physical state or properties. When a substance gains energy, its particles gain kinetic energy and move faster, resulting in a change such as melting or boiling. Conversely, when a substance loses energy, its particles lose kinetic energy and move slower, leading to changes like freezing or condensation. Therefore, energy, particularly in the form of heat, is essential for physical changes to occur in substances.Rate this question:
- 6.
What are the 3 states of matter. Start with the the lightest and finish with the heaviest. Space between each one no commas no capitals.
Explanation
The three states of matter are gas, liquid, and solid. Gas is the lightest state of matter as its particles are not closely packed and have high energy. Liquid is the intermediate state of matter where the particles are closer together but still able to move around. Solid is the heaviest state of matter as its particles are tightly packed and have low energy, resulting in a fixed shape and volume.Rate this question:
- 7.
What is the process called when water is heated and causes steam?
Explanation
Evaporation is the process by which water is heated and transforms into steam. When heat is applied to water, the water molecules gain energy and start moving faster. This increased kinetic energy allows some of the water molecules to escape from the liquid phase and enter the gas phase, forming steam. Evaporation is a natural process that occurs at any temperature, but it is accelerated when heat is applied.Rate this question:
- 8.
How can you return melted ice to its original state? One word
Explanation
The process of returning melted ice to its original state involves cooling or freezing the ice. When ice melts, it changes from a solid to a liquid state. By cooling or freezing the liquid, it can be converted back into its original solid state as ice.Rate this question:
- 9.
What is created in the water when fizzing tablets are added to water. One word
Explanation
Fizzing tablets contain ingredients that react with water to release carbon dioxide gas. This gas forms bubbles in the water, creating a fizzy or effervescent effect. Therefore, when fizzing tablets are added to water, bubbles are created.Rate this question:
- 10.
What happens to salt when it is added to water. It __________________________
Explanation
When salt is added to water, it dissolves.Rate this question:
- 11.
Melted chocolate is irreversible?
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True
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False
Correct Answer
A. FalseExplanation
The statement "Melted chocolate is irreversible" is false. When chocolate is melted, it undergoes a physical change from a solid to a liquid state. This change is reversible, as the melted chocolate can be cooled and solidified again by reducing its temperature. Therefore, melted chocolate can be reversed back to its original solid form.Rate this question:
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- 12.
What is the third thing that you need for a candle to burn? heat, fuel and _______________
Correct Answer
oxygen, airExplanation
A candle requires three things to burn: heat, fuel, and oxygen. Oxygen is necessary for the combustion process to occur. When the heat from the flame reaches the fuel (wax or wick), it vaporizes and reacts with the oxygen in the air, producing heat, light, and carbon dioxide. Without oxygen, the candle would not be able to sustain its flame and continue burning. Therefore, the third thing needed for a candle to burn is oxygen or air.Rate this question:
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Mar 14, 2023Quiz Edited by
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Sep 19, 2012Quiz Created by
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