Lesson 1: Mixtures & Solutions

Made of two or more substances that are together in the same place but not chemically combined

• Atom.

• Mixture

• Element

It has the same uniform appearance and composition throughout.

• A homogeneous mixture

• A heterogeneous mixture

What kind of mixture is the rice and meat pieces?

• A homogeneous mixture

• A heterogeneous mixture

Which of the following tests could you perform to separate different kinds of mixtures?

• Dissolve salt in water.

• Separate the metal pieces by a magnet.

• Evaporate the liquid by using a hotplate.

• Separate large particles by a filter paper.

To separate a mixture of salt and water, we can use:

• Hot Plate

• Magnet

• Filter

Heterogeneous mixture in which some of the particles settle out of the mixture upon standing :

• solution

• colloid

• suspension

It has the same uniform appearance and composition throughout

• A homogeneous mixture

• A heterogeneous mixture

A mixture where throughout the solution the composition is not uniform

• A homogeneous mixture

• A heterogeneous mixture

Which solution has a higher concentration of red particles?

• A

• B

Which solution has a LOWER concentration of red particles?

• A

• B