Mixtures (Separating Techniques)

True/False:

Mixtures are combinations of two or more substances.

• True

• False

What tool can be used to separate plastic beads and metal paper clips?

• filter

• magnet

• strainer

• cloth

Tags

NGSS.3-PS2-4

True or False: A chemical reaction is needed to create a mixture.

• True

• False

True or False:

Mixtures can be separated by physical processes.

• True

• False

John wants to separate salt from water. What separation technique should he use?

• evaporation/condensation

• filtration

• decanting

• magnetism

A mixture of plastics and steel can best be separated by ________________.

• adding water

• evaporation

• a magnet

• fltration

Grade 4 students are conducting an experiment with saltwater.  A large quantity of sand was added to the container of saltwater.  What do you expect to observe?

• The salt floats to the top of the container

• The sand dissolves.

• The sand settles to the bottom of the container.

• The salt and sand combine to form a solid.

A handful of soil is an example of a _________________?

• mixture

• solution

• energy

• a science material

A kind of mixture in which all the parts are mixed EVENLY?

• energy

• sand and saltwater

• soil

• solution

True/False:

In a mixture, the matter might lose its physical properties. But the matter still keeps its original chemical properties.

• True

• False