G6.Intro to Science

A person who makes new substances, or designs huge pieces of equipment called - chemical plants, where vast amounts of chemicals are made.

• Geologist

• Geochemist

• Chemical engineer

• Nuclear physicist

Scientific equipment is called _________.

If the collar is turned and air hole is open, air mixes with the ______ in the chimney.

• gas tap

• gas

• apparatus

• rubber

Why is less heat energy released by the luminous flame ?

• It is because not all sodium particles reacts with oxygen at once.

• It is because all carbon particles reacts with oxygen at once.

• It is because not all carbon particles reacts with oxygen at once.

• It is because all calcium particles reacts with oxygen at once.

Identify the hazard sign.

Identify the apparatus.

• Filter funnel

• Erlenmeyer flask

• RB Flask

• Beaker

Some spirit burners have an ___________ to control the size of the flame.

• gas tap

• air hole

• adjustable wick

• fuel reservoir

Which safety rule is the image indicating ?

• Do not run while entering or leaving the laboratory.

• Put the chairs under the bench after use.

• Wear safety gear.

• No eating or drinking in the lab.

A hazard sign that indicates that the substance can harm respiratory organs.

• Acutely toxic

• Flammable

• Moderate hazard

• Health hazards

Laboratory apparatus are made of this substance.