Science Final Exam Revision

Which of the following is a solution?

• Salt water

• Macaroni and cheese

• Cake mix

• Vegetable soup

If charcoal powder and iron filings are mixed together, which tool is suitable for separating them?

• magnet

• funnel

• filter paper

• candle

................... Is the amount of matter in an object

• Weight

• mass

• Volume

• density

................... is the measure of the force of gravity of an object.

• Weight

• mass

• Volume

• density

Which of the following is considered a physical change?

• Baking cake

• Boiling water

• Rusting of iron

• Cooking eggs

Which of the following is considered a chemical change?

• Breaking glass

• Folding paper

• Rusting of iron

• Cutting wood

................ is the basic unit from which all matter is made.

• Atom

• element

• Volume

• compound

...................is a chart showing all of the elements arranged according to the repeating pattern of their physical and chemical properties.

• Metallic table

• Periodic table

• Compound table

• Properties table

Which of the following is NOT a common sign of a chemical reaction?

• Formation of bubbles

• Change in color

• Change in shape without new substance

• Formation of precipitate

What is the density of an object whose mass is 80 grams and whose volume is 40 cm³.

• 2 g/ cm³

• 0.25g/ cm³

• 0.25 cm³/g

• 4 cm³/g