
Mrs. Logue’s 5th grade students made mixtures and then practiced using different tools to separate them by their properties. First, they combined gravel and sand and then separated it by particle size using a sieve. Then, students mixed iron filings into the sand and discussed how to separate them. They decided on using a magnet to get the iron out of the sand. Finally, they mixed salt into the sand and discovered that the only way to separate the salt out was with the property of solubility. Students poured water into the mixture and stirred to dissolve the salt. Then … Read More