Phosphorus is a chemical element with symbol P and atomic number 15. As an element, phosphorus exists in two major formsâ white phosphorus and red phosphorus âbut due to its high reactivity, phosphorus is never found as a free element on Earth. Instead phosphorus-containing minerals are almost always present in their maximally oxidised state, as inorganic phosphate rocks.
Ages & Stages â Preschool Children. Three and four-year-old children are often called preschoolers. Preschool children want to touch, taste, smell, hear, and test things for themselves. They are eager to learn. They learn by experiencing and by doing. Preschoolers learn from their play.
Age Preschool. Our preschool activities are for kids 3-5 years old with some wiggle room on either side. We have crafts for preschool, learning activities, preschool science exploration, pretend play, gross motor activities that will get them moving, and fine motor activities that will encourage focus and development. 1  Alphabet activities.