1 UNIT 4. PLANTS.
PROJECTS.
C.E.I.P. SANTA ANA (Madridejos)
PROJECT 1: “GROWING SALT CRYSTALS” You are going to do an experiment of evaporation as a separation process in a mixture of salt and coloured water. (in pairs) Tools and materials: .– Spoon. .– Jar. .– Salt. .– Water. .– Water colours .– Thread, paper clip... Process: 1.– Pour some water into the jar, and add some salt. (Optional: you can colour the water with watercolours). 2.– Mix the salt and water with the spoon. You can heat the liquid in a microwave. 3.– Put a paper clip fixed with a thread. 4.– Place the jar in a warm place (under the sun, or next to a heating…). Watch it after some days... Note: You can watch this video to get an idea the way you can do it.
OPTIONAL: You can use sugar and food colouring to make crystal candies.
IMPORTANT: Take pictures of the process and prepare a power point. You must bring to the class: the power point and salt crystals.