A) Composition changes B) Composition stays the same C) Form stays the same D) Mass is lost
A) formation of a gas B) melting of a solid C) formation of a precipitate D) color change
A) Chemical change B) Physical change C) Both a physical and chemical change D) Neither a physical or chemical change
A) A strip of magnesium ribbon is broken into many small pieces. B) A blue solution is mixed with a yellow solution and a green solution results. C) A blue solution is mixed with a yellow solution and a brown solid is formed. D) Ice is placed in a beaker and heated until it melts.
A) an explosion of dynamite B) sharpening a pencil C) melting ice D) melting ice
A) They move very fast in all directions. B) They move past each other slowly. C) They are always moving. D) They do not move.
A) A silver statue begins to tarnish. B) A metal turns to liquid at a certain temperature. C) A painter coats a building with red paint. D) A freshly waxed floor has a bright shine.
A) Nuclear reaction B) Chemical fusion C) Chemical change D) Physical change
A) a chemical property B) a physical change C) a physical property D) a state of matter
A) Chemical Change B) Both a physical and chemical change C) Neither a physical or chemical change D) Physical Change
A) lettuce rotting in the refrigerator B) metal melting in very high heat C) charcoal burning in a grill D) scrap iron rusting over time
A) air B) light C) magnetism D) sound
A) A melting block of ice leaves a large puddle. B) A rotting potato gives off a bad smell. C) A cloud quickly changes shape when blown by wind. D) A plaster statue breaks when it falls onto the floor.
A) Lighting a piece of paper on fire and the paper burns up and leaves ashes. B) Baking a birthday cake for your mother. C) Mixing baking soda and vinegar together, and this causes bubbles and foam. D) A glass cup falls from the counter and shatters on the ground. |