In Science Class . . .Week 9/19

This week, we'll be continuing with separating mixtures. Students will make a dry mixture of powder, salt and gravel and come up with a plan to separate them using the tools we've used. Next week, we'll start work on saturating solutions by seeing how much salt can dissolve in 50 ml of water.
Key questions:

• What was your plan for separating the dry mixture? (Most groups will add water, then used the screen to separate out the gravel, the filter to separate out the powder and then evaporation to separate the salt and water at the end.
• Did it work? What would you change in the future?