7 grade bjb 3 term

True/ False : Given lab instruction below : Do not touch chemicals with your fingers

• True

• False

True/False: Given lab instruction below

Tie short hair

• No

• Yes

Given lab instruction, finish it correctly:

Wear gloves when ……

• heat

• cold

• warm

• fast

Which one of the following is elements?

• Helium gas, Gold, Silver

• Air, Mercury, Water

• Water, Magnesium, Salt

• Salt, Oxygen gas, Soup

Which one of the following is compound?

• sugar in liquid, Iron

• salty water and hydrogen gas

• carbon dioxide gas and salat

• Water and salt

Given type of changes:

Burning wood

Which one of the following is correct?

• Chemical change

• Physical change

Given type of changes:

Souring milk

Which one of the following is correct?

• Chemical change

• Physical change

Given type of changes:

Melting an ice cube

Which one of the following is correct?

• Chemical change

• Physical change

Given type of changes:

Breaking glass

Which one of the following is correct?

• Chemical change

• Physical change

Which one of the following is not state of Matter?

• Gas

• Cell

• Liquid

• Solid