5th Grade: In 5th grade science this week, we'll be wrapping up our evaporation experiments and graphing our results. Students will practice using syringes and graduated cylinders to measure water volume. Key questions:
- How did you measure the volume of the water in the cups? (We used a syringe to put the water into a graduated cylinder.)
- Where in the classroom did water evaporate most quickly? (Depends on group, but likely by 007's terrarium, because the air temperature was higher due to the heater.)
- Where did it evaporate the slowest? (On the floor, in the cupboard, etc where air temperatures were lower)
4th Grade: This week, we'll be continuing our investigations into the properties of minerals. In particular, we will be looking at calcite, which reacts with acid to form CO2 gas (bubbles). We'll be testing which rocks contain calcite by putting them in vinegar. Key questions:
- What makes calcite special? (It reacts with acid to form gas bubbles)
- Which rocks contained calcite? How do you know? (Limestone and marble, because they bubbled. Sandstone had air bubbles come off of it because it is porous, but it didn't continue to bubble so it does not contain calcite.)
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