Physical changes are usually reversible and does not involve breaking / forming or bonds. Chemical changes, on the other hand, are usually irreversible and the breaking / forming of bonds do take place. Burning of paper produces ash, smoke and also releases heat.
Hummingbird cake is a banana pineapple spice cake common in the Southern United States. Ingredients include flour, sugar, salt, ripe banana, pineapple, cinnamon, pecans, vanilla extract, eggs, and leavening agent.ummingbird cake is a banana pineapple spice cake common in the Southern United States. Ingredients include flour, sugar, salt, ripe banana, pineapple, cinnamon, pecans, vanilla extract, eggs, and leavening agent.
Homemade Hummingbird Food. 1 part sugar/4 parts water. Boil the water first, then measure and add sugar, at the rate of 1/4 cup of sugar to 1 cup of water. Let cool and store excess in refrigerator until ready to use. Do not add food coloring, honey (which ferments), or artificial sweetener, which has no nutritional value.