Grade 7 Chemistry

What is a compound? 

•  the simplest form of a substance 
• a combination only of 3 elements 
• a combination of 2 or more elements 
• a place where people are held 

Tags

NGSS.MS-PS1-1

What is a mixture? 

• a combination of elements to make a new substance 
• a chemically combined substance 
• a combination of substances where new substances are formed through a reaction
• a combination of substances in which the atoms of the substance do not chemically combine

What would you be able to do with a filter, magnet, or strainer when thinking about a mixture? 

• separate them 
• combine them chemically
• combine them physically

In a solution which part of the solution is the solute: ice tea mix or water? 

• ice tea mix 
• water
• ice tea

What is a substance that is dissolved in another substance? 

• solution
• solute
• solvent
• compound

What is the simplest form that cannot be broken down to anything simpler? 

• element 
• solution
• compound

What is true about the combinations of elements to become a compound? 

• the properties of the element stay the same 
• the properties are  very similar to the outcome of the compound
• the properties will change when combined to form a compund
• nothing happens 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How are solutions and mixtures alike? 

• They are a combination of substances
• They are both chemically combined
• they can be separated immediately
• they have no similarities

How are mixtures and solutions different form each other? 

• there are no differences 
• once combines chemically the other combines electronically 
• they have more than one elements in them
• the mixture combines physically and the solution is not easily separated 

To separate a mixture of soil and water what separation method is used?

• Filtration
• Chromatography
• Distillation
• Evaporation