M SCIENCE QUIZ PART 3 Jeopardy Template

MATTER 1

MATTER 2

MATTER 3

MATTER 4

100

A physical change in matter occurs when _____

(A) wood is burnt into coals (B) ice melts

B) ice melts

100

Which of the following materials is insoluble in water?

A.Sugar

(b) flour

(d) coffee

B. FLOUR

100

During an experiment a mixture of salt and water was made. The water is therefore considered to be the ________________.

(a) solvent

(b) solution

(d) substitute

(a) solvent

Explanation:

In a mixture of salt and water, water is the solvent because it is the substance that dissolves the solute (salt). The solvent is typically the liquid in a solution that dissolves the solute.

Why the other options are incorrect:

(b) Solution: A solution is the entire mixture formed when the solute (salt) dissolves in the solvent (water).
(c) Solute: The solute is the substance that dissolves in the solvent. In this case, the salt is the solute, not the water.
(d) Substitute: This term doesn't relate to the process of dissolving substances in a solvent.

100

Materials that allow light to pass through them are ______.

a) translucent b) transparent c) opaque d) shiny

(b) transparent

Explanation:

Transparent materials allow light to pass through them clearly, so objects on the other side can be seen clearly (e.g., clear glass or water).

Why the other options are incorrect:

(a) Translucent: These materials allow some light to pass through but not enough to see objects clearly (e.g., frosted glass).
(c) Opaque: These materials do not allow light to pass through at all (e.g., wood or metal).
(d) Shiny: Shiny refers to how a surface reflects light, not its ability to allow light to pass through.

200

Which of the following is not a physical change?

A. Colour

(b) rust

(d) size

(b) rust

Explanation:

Rusting is a chemical change because it involves a reaction between iron, oxygen, and moisture to form a new substance (iron oxide), which cannot be reversed easily.

Why the other options are physical changes:

(a) Colour: A change in color can be a physical change (e.g., mixing paints) if no new substance is formed.
(c) Shape: Changing the shape of an object (e.g., cutting paper) is a physical change as no new substance is created.
(d) Size: Altering the size (e.g., breaking a rock) is also a physical change because the material's composition remains the same.

200

Materials that can be dissolved in a liquid are called ______ materials.

(a) insoluble (b) light (c) soluble (d) heavy

(a) insoluble

200

The process used in the manufacturing of bottled water is __________________.

(a) chromatography

(b) filtration

(d) evaporation

B. FITRATION

Explanation:

Filtration is commonly used in the manufacturing of bottled water to remove impurities, particles, and other contaminants from the water. It involves passing the water through a filter to separate unwanted substances.

Why the other options are incorrect:

(a) Chromatography: This method is typically used for separating mixtures of different substances, like in laboratory settings, and is not used for bottled water production.
(c) Distillation: Distillation involves boiling water and then condensing the vapor to remove impurities. While it can be used for purification, it is not the primary method for most bottled water.
(d) Evaporation: Evaporation is the process of turning liquid into vapor, which is not typically used in bottled water manufacturing.

200

When a dark cloth was placed over a lamp, the room became dark. The cloth was_______.

a. Transparent

b. Translucent

c. Clear
d. Opaque

(b) transparent

Explanation:

Transparent materials allow light to pass through them clearly, so objects on the other side can be seen clearly (e.g., clear glass or water).

Why the other options are incorrect:

(a) Translucent: These materials allow some light to pass through but not enough to see objects clearly (e.g., frosted glass).
(c) Opaque: These materials do not allow light to pass through at all (e.g., wood or metal).
(d) Shiny: Shiny refers to how a surface reflects light, not its ability to allow light to pass through.

300

Which statement is true about solids?

(A) They can be poured.

(B) They have their own shape.

(D) They can flow.

(B) They have their own shape.

300

Edd watched a kettle on a stove. He saw water vapour coming out of the kettle. This can be described as _______.

A. condensation

B. melting

C. freezing

D. evaporation

300

Gina separated a particular mixture by using a magnet to take out one of the materials. Which of the following was the mixture most likely to be?

(a) salt and water

(b) straight pins and powder

(d) straight pins and iron fillings

Explanation:

A magnet is used to separate magnetic materials from non-magnetic ones. In this case, iron filings are magnetic, while straight pins might be made of a material that isn't magnetic, but could still attract some magnetic properties depending on the metal. The magnet would attract the iron fillings, allowing them to be separated from the straight pins.

Why the other options are incorrect:

(a) Salt and water: Salt dissolves in water, so a magnet cannot be used to separate them.
(b) Straight pins and powder: A magnet would not be effective in separating powder, as it typically consists of non-metallic substances.
(c) Salt and sugar: Both are non-magnetic substances, so a magnet cannot be used to separate them.

300

What two forms of energy are released from a burning candle?

a. light and heat

b. sound and chemical

c. magnetic and nuclear

d. electrical and mechanicaL

(a) light and heat

Explanation:

When a candle burns, it produces light (visible energy) and heat (thermal energy) as a result of the combustion process, where the wax reacts with oxygen in the air.

Why the other options are incorrect:

(b) Sound and chemical: While a candle produces chemical energy during combustion, it does not primarily release sound energy.
(c) Magnetic and nuclear: These forms of energy are not involved in the burning of a candle.
(d) Electrical and mechanical: These forms of energy are not typically released by a burning candle.

400

Materials that can be dissolved in a liquid are called ______ materials.

(a) insoluble

(b) light

(d) heavy

Explanation:

Soluble materials are substances that can dissolve in a liquid (usually water) to form a solution. For example, salt and sugar are soluble in water.

Why the other options are incorrect:

(a) Insoluble: These materials do not dissolve in a liquid (e.g., sand in water).
(b) Light: This refers to weight, not solubility.
(d) Heavy: This also refers to weight and is unrelated to whether a material dissolves.

400

What is the temperature at which water begin to boil?

a. 10*C

b. 80*C

c. 100*C

d. 0*C

c. 100*C

400

What process takes place when yeast is used to produce alcohol?

(a) circulation

(b) excretion

(d) fermentation.

(d) fermentation

Explanation:

Fermentation is the process by which yeast breaks down sugars in the absence of oxygen to produce alcohol and carbon dioxide. This is the process used in brewing and winemaking to produce alcoholic beverages.

Why the other options are incorrect:

(a) Circulation: Refers to the movement of blood in the body .
(b) Excretion: Refers to the removal of waste products from the bodyl.
(c) Respiration: While yeast also undergoes respiration, in the absence of oxygen, it performs fermentation rather than aerobic respiration to produce alcohol.

400

Tarma felt cold and rubbed her hands together. Which type of energy is likely to be produced?

(A) light (B) electrical (C) heat (D) wind

Explanation:

When Tarma rubs her hands together, friction between her hands generates heat. This is an example of mechanical energy being converted into thermal energy (heat).

Why the other options are incorrect:

(A) Light: Rubbing hands together doesn't produce visible light.
(B) Electrical: Rubbing hands doesn't generate electrical energy.
(D) Wind: While rubbing hands might cause some air movement, it doesn't primarily produce wind.

500

When sugar dissolves in water a ______________is formed.

A. Solution

b. Substance

c. Solvent

d. Material

A. Solution

Explanation:

When sugar dissolves in water, a solution is formed. A solution is a homogeneous mixture where a solute (sugar) dissolves in a solvent (water).

Why the other options are incorrect:

(b) Substance: This is a general term that refers to any form of matter but doesn't describe the mixture formed by dissolving.
(c) Solvent: This refers to the liquid (like water) in which the solute dissolves, but it is not the result of dissolving sugar.
(d) Material: This is too broad and does not specifically refer to the mixture formed by dissolving.

500

Mercury is a liquid metal used in thermometers. Sam would like to determine situations under which mercury expands. This would occur when it ____________________.

(a) is heated

(b) placed in a refrigerator

(d) sucked upward by a vacuum

(a) is heated

500

My fridge has broken-down and there is meat in it. Which is the best way to preserve the meat?

(A) Soak it in vinegar.

(B) Soak in alcohol.

(D) Pour lime juice over it.

500

Which of the following alternative forms of energy is used in St. Lucia?

(a) geothermal energy

(b) wind energy

(d) energy from running water