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Explain Why blackboards are not scratched by chalk but by the sand embedded in the chalk?
Blackboards are not scratched by chalk because chalk is softer than the material from which the blackboard is constructed. Sand scratches blackboards because it is harder than the material from which a blackboard is made.
What is a chalk coastline?
a coastline made out of chalk! ta daa!
Is sidewalk chalk made out of the same things as blackboard chalk?
YEP!
Is chalk magnetic?
no,chalk is not magnetic because it is not made out of either iron or steel or otherwise it is not made out of meatal
Why are bubbles emitted when a chalk piece is immersed in water?
Chalk is a porous material - this means there are microscopic holes in the substance, which water seeps into - expelling air as visible bubbles.
Is pool cue chalk toxic?
Most billiards chalk is not toxic, but it has no nutritional value either. It is essentially made of the same material fine sandpaper is made from.
What is the type of rock from the white cliffs of dover?
The material the cliffs are made from is CHALK
Why table is common noun while chalk and soap are material noun?
The nouns 'table', chalk', and 'soap' are all common nouns, general words for any table, chalk, or soap.Material nounsare words for things that other things are made from.There are some things that are made with chalk (such as quicklime), but things are not usually made from tables or soap (they are normally end products).So, the only material noun in the group is chalk, and only when chalk is used to make something else.
Explain Why blackboards are not scratched by chalk but by the sand embedded in the chalk?
Blackboards are not scratched by chalk because chalk is softer than the material from which the blackboard is constructed. Sand scratches blackboards because it is harder than the material from which a blackboard is made.
Is chalk good for building?
Chalk is a type of limestone that is too soft for a building material.
Why is Flamborough Head made from chalk?
flamborough is made from chalk because it is
Does vinegar and chalk make a new material?
yeahhhhh
What is the common material found inside the classroom?
Chalk
What the material used to make chalk piece?
Chalk is a naturally occurring form of limestone, composed of the mineral calcite.
Is gypsum board a metal?
No, gypsum board is made from gypsum plaster and paper. Gypsum is a material very similar to school board chalk.
What is a compound and an example?
A compound is a material that is made up of two or more chemicals. Salt, water, chalk, ammonia, and sugar are examples of compounds.
What is a chalk coastline?
a coastline made out of chalk! ta daa!
