Properties And Characteristics Of Matter Quiz

Fizzing or foaming is often observed when a chemical change occurs. This is because certain chemical reactions produce gases as a byproduct, which can cause the formation of bubbles or foam. This release of gas is a clear indication that a chemical reaction is taking place, making the statement true.

Solid particles are packed close together giving them a fixed shape and a definite volume.

On a hot sunny day, the ice cream would experience a phase change from a solid to a liquid. This process is known as melting. As the temperature rises, the ice cream absorbs heat energy from its surroundings, causing the solid ice cream to break down and transform into a liquid state. This change in phase is commonly observed when substances transition from a solid to a liquid due to an increase in temperature.

To change from a LIQUID to a SOLID, thermal energy is lost.
Particles vibrate slower thus reducing the temperature. Liquid particles move slower and slower until they become fixed in place, becoming a solid

Matter changes state when the amount of thermal energy
increases or decreases.

The statement is true because matter is defined as anything that has mass and takes up space. This means that any physical substance, whether it is solid, liquid, or gas, is considered matter. Matter can be observed and measured, and it is composed of tiny particles called atoms and molecules. Therefore, anything that meets the criteria of having mass and occupying space can be classified as matter.

The temperature at which matter melts is called the melting point. All matter has a unique melting point.

When an object changes from a liquid to a solid, the object loses thermal energy, therefore the particles begin to move slower and slower until the object changes phases.

Condensation occurs when water vapor loses thermal energy and condenses into liquid.

The correct answer is freezing. Freezing is the phase change that occurs when a substance changes from a liquid to a solid. In this case, the molten lava, which was in a liquid state, hardens into a solid rock after a few hours.

Gases do not have a definite shape or volume. The particles are free to move to fill the container they are in.

Sublimation is a physical change from a SOLID to a GAS. The solids do not pass through liquid phase; they immediately transform into a gas.

The temperature at which matter changes from a solid to a liquid is called the melting point.

Evaporation is a phase change from a liquid to a gas which takes place on the surface of the liquid.

The given correct answer is "chemical" because burning in air is a chemical reaction. When a substance undergoes combustion in the presence of oxygen, it reacts with oxygen to produce new substances and release energy. This process involves breaking and forming chemical bonds, resulting in a chemical change. Therefore, burning in air is considered a chemical reaction rather than a physical change.

The given question is asking whether the process of ice melting in a drink is a chemical or physical change. The correct answer is "physical change." This is because when ice melts, it undergoes a phase change from a solid to a liquid without any alteration in its chemical composition. The molecules in the ice simply gain enough energy to break their rigid structure and move more freely, resulting in the formation of liquid water. Therefore, no new substances are formed, indicating a physical change rather than a chemical one.

When a cold bottle of water is taken out of the refrigerator and placed on a table, the surrounding air is warmer than the temperature of the bottle. As a result, the air around the bottle cools down and cannot hold as much moisture. This causes the water vapor in the air to condense into liquid water droplets on the surface of the bottle, leading to the formation of droplets. Therefore, the phase change that has occurred is condensation.

The production of light is evidence of a physical change because it is a visible manifestation of energy being transformed. Light is a form of energy, and when it is produced, it indicates that there has been a conversion or transformation of energy, which is a characteristic of a physical change. Physical changes involve alterations in the physical properties or state of a substance, without any change in its chemical composition. The production of light can occur through various physical processes such as combustion, electrical discharge, or luminescence, all of which involve the conversion of energy and are therefore evidence of a physical change.

The addition of sugar to lemonade results in a chemical change. When sugar is added to lemonade, it dissolves in the liquid and undergoes a chemical reaction with the water molecules. This reaction breaks down the sugar molecules into smaller components, such as glucose and fructose. This change is irreversible, as the sugar molecules have been transformed into different substances. Therefore, the addition of sugar to lemonade is an example of a chemical change.

A physical change is a change that occurs when a substance undergoes a change in its physical properties, such as shape, size, or state, without forming any new substances. In a physical change, the composition of the substance remains the same even though its appearance or properties may be altered. Therefore, the given statement that a physical change occurs when a substance changes composition by forming one or more new substances is incorrect.

Matter is anything that is made up of stuff and occupies space. Water is made up of a combination of hydrogen and oxygen molecules and takes up space, depending how much of it you have.

Liquids have a definite volume but they do NOT have a definite shape. The molecules take shape of the container they are in. The molecules move by sliding past each other freely.

The answer is correct because in image 1, the particles are close together and can move past each other, indicating a liquid phase. In image 2, the particles are tightly packed and have a fixed shape, indicating a solid phase. In image 3, the particles are far apart and moving freely, indicating a gas phase.

At 150°C, water is in the gas phase. This is because water boils and turns into steam at 100°C, and at higher temperatures, it remains in the gas phase. The water molecules gain enough energy to break the intermolecular forces and escape into the air as water vapor. Therefore, the correct answer is gas.

Aluminum foil, sugar, and oil are examples of substances because they have a definite composition. They are made up of the same type of molecules throughout, regardless of their location or form. Chicken noodle soup and chocolate cookies, on the other hand, are mixtures that contain different substances combined together.

The fact that something "melts easily" suggests that it undergoes a chemical change rather than a physical change. Physical changes, such as changes in state (solid to liquid), are reversible and do not alter the chemical composition of the substance. On the other hand, chemical changes involve the breaking and forming of chemical bonds, resulting in a new substance with different properties. Melting easily implies that the substance is undergoing a chemical reaction, where the bonds holding its particles together are being broken, leading to a change in its physical state.

Frying an egg is a chemical change, it changes color.
Freezing water to form ice is not a chemical change; ice is just the solid form of water.
Lighting a match and mixing baking soda and vinegar are chemical changes.
Painting a wall is not a chemical change. It doesn't change the wall itself even though the color changed, the color is still the paint.

Color change is not always evidence that a chemical change may have occurred. While some chemical reactions do result in a color change, there are also many other factors that can cause a change in color, such as the presence of impurities or changes in the physical state of a substance. Therefore, the occurrence of a color change alone is not sufficient evidence to conclude that a chemical change has taken place.