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