Mixtures

Mixtures are formed when...

• Two elements that react chemically are put together.

• Two elements that don´t react chemically are put together.

• One element by itself

An example of mixture is:

• water

• oil

• soup

• iron

Choose the correct word for this definition: Elements that form a mixture cannot be differenciated and have a uniform appeareance.

• Homogeneous mixtures

• Heterogeneous mixtures

When elements that form a mixture can be differenciated into phases or parts.

• Homogeneous mixtures

• Heterogeneous mixtures

Choose True or False: Once a mixture is formed we can´t separate its components.

• True

• False

What is distillation?

• Separate liquids that evaporate at the same temperature.

• Separate solids that transform to liquid.

• Separate liquids that evaporate at different temperatures.

What is seiving?

• Separate solid particles from liquids or solids.

• Separate solid particles from only from liquids.

• Separate solid particles from gas.

Choose True or False: Evaporation means separating a mixture that has different boiling points.

• True

• False

How satisfied were you with the online Science classes these months (regarding: fun/interesting activities, class participation, resources, and learning)

• Very satisfied

• Satisfied

• Not very satisfied

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