In this activity, students will perform three experiments using household ingredients to observe and record color changes, indicators that a chemical reaction has taken place. Students also will ...

When you bake a cake, the ingredients go through a chemical change. A chemical change occurs when the molecules that compose two or more substances are rearranged to form a new substance!

The iodine does not change color when it combines with the baking ... differently or maybe adding another substance to see if a different chemical reaction takes place. The activity sheet will serve ...

So how do we know something is there? See for yourself. Heat Up to Some Cool Reactions All chemical reactions have one thing in common: temperature change. Learn the difference between chemical ...

Physical and chemical changes occur all around you every day. Read the story below and circle the physical and chemical changes you see within it. Use your blue pen to circle physical changes and ...