PROGRESSIVE 3-YEAR 7 SCIENCE TERM2

What is meant by Energy Dissipation?

• A term used to describe ways in which energy is wasted.
• Is the term used to describe ways in which energy is stored.
• A term used to describe ways in which energy is transferred.
• A term used to describe ways in which energy is produced.

Metalloids have properties of ….

• Metals
• Non – metals
• Both metals and Non metals
• Neither metals nor non metals

Identify the chemical reaction illustrated in the picture below

• precipitation reaction
• corrosion reaction
• combustion reaction
• rusting

.............is a colorless, odorless and tasteless gas. It has the least density among all the gasses. It is used as a rocket fuel and is also used in the production of fertilizer. This gas can be prepared in the laboratory by the reaction of a metal with an acid. Name this that gas gives a 'pop' sound with a glowing splint.

• Nitrogen gas
• Hydrogen gas
• Oxygen gas
• Ammonia gas

I am a strong and expensive metal; but I am in the liquid form at room temperature.

• Alumninium
• Mercury
• Argon
• Silver

Metals are sonorous, meaning they can be used to produce sound.

• True
• False
• Not sure

Metals show..

• Malleability
• Conductivity
• Ductility
• All of the above

Non – metals are good insulators, this means electricity ……… flow through them

• can
• cannot
• may
• will

Choose the ODD one concerning metals.

• Conducts heat and electricity well
• Is brittle and breaks easily
• Can be hammered into thin sheets
• Has shiny, metallic luster

A metal that can easily be drawn / twisted into wires is

• ductile
• brittle
• conductive
• malleable