What is physical change grade 5?

Does plant vacuole has nucleic acid? Substances tend to move according to their concentration gradients by the process of? How fast do you have to travel to catch fire? Where would a ship encounter the calmest winds? Matter can take the form of solid liquid or gas? In what year did Ivan the terrible become czar? What is a plant that produces seeds within a cone called? What are produced in the sporophyte stage of a plant life cycle? Why is it important to establish direction from which the wind is blowing? What is the standard unit for mass in the metric system? Solution of water and aspirin an acid? What are the 3 uses of minicomputers? Who proposed that all atoms cannot be divided or destroyed and that atoms of the same element are exactly the same? How do you pronounce mohs? Does 15 cm 1.5 mm? What Type of sink hole shows a circular depression over longer periods of time? Is nitrogen a molecule and why? Is 3 m 2700 mm? What are gymnosperm eggs fertilized in? How was the atomic number and the atomic mass determined?