Posts by Levin George

States of Matter and Separation Techniques

Matter is anything which has mass and takes up space. There are three states of matter, solid, liquid, and gas. Solid – definite shape, definite volume, does not flow. Particles vibrate only. Liquid – no definite shape, definite volume, can flow. Particles slide over each other. Gas – no shape, no definite volume, can be compressed…. Continue Reading →

Points on Photosynthesis – Junior Cert Science

Photosynthesis Green plants make food by photosynthesis. Photosynthesis occurs in the leaves of a plant. The green chemical chlorophyll is needed for photosynthesis. Chlorophyll traps light energy and uses it to combine carbon dioxide and water. This forms glucose and oxygen. Leaves have air spaces between their leaves called stomata. The three things needed for… Continue Reading →