Y7 U2 Test Review

A substance changed shape and took the shape of the beaker it was in. What was the substance?

• Solid
• Liquid
• Gas
• Plasma

What is the chemical symbol for potassium?

• P
• K
• Po
• Pt

What is the chemical symbol for argon?

• Ar
• Ag
• An
• A

Which state of matter is represented by a diagram showing particles that are close together but not in a fixed position?

• Solid
• Liquid
• Gas
• Plasma

What is the difference between a mixture and a compound?

• In a mixture, the substances are chemically bonded.
• In a compound, the substances are not chemically bonded.
• In a mixture, the substances are not chemically bonded.
• In a compound, the substances can be separated by physical means.

How can you ensure you are reading the volume of a liquid in a measuring cylinder as accurately as possible?

• Read the scale from above the meniscus.
• Read the scale from below the meniscus.
• Place your eye in line with the meniscus.
• Estimate the volume without looking at the scale.

If you leave ice in a warm place it melts and becomes liquid water. What is the temperature at which a solid melts called?

• Boiling point
• Freezing point
• Melting point
• Sublimation point

Which of these statements about the Periodic Table is correct?

• The columns are called periods.
• The columns are called groups.
• The metals are found on the right of the table.
• The non-metals are found on the left of the table.

During the evaporation step of the water cycle, water changes state from...

• Gas to liquid
• Solid to liquid
• Liquid to gas
• Solid to gas

Which of the following is NOT a form of precipitation?

• Rain
• Snow
• Condensation
• Hail