SUBJECT PHYSICS

LESSON: MATTER

I. Multiple Choice O Direction: Choose the letter that corresponds to the correct answer by writing on the space provided for. 1. What state of matter is characterized by a definite volume and an indefinite shape? A. Gas B. Liquid C. Mixture D. Solid _2. Which property could NOT be used to distinguish between table salt and table sugar? A. Boiling point B. Color C. Density D. Melting point 3. Which of the following is an intensive property? A. Amount of energy C. Mass B. Malleability D. Volume 4. Aling Belen cooked chicken macaroni soup for her daughter who was on a five- day quarantine at Simple Living Hotel at Poctoy. Her daughter doesn't like to eat the soup with liquid in it. So, Aling Belen tried to remove the broth, which is the mixture of dissolved sugar, milk, salt and water. How is the mixture classified? A. Heterogeneous mixture B. Homogeneous mixture C. Both Heterogeneous and homogeneous mixtures D. Neither heterogeneous and homogeneous mixtures 5. When the stick of butter was left on the kitchen table of the Simple Living Hotel by Aling Nena's daughter, it softens gradually rather than melting at a specific temperature, or melting point. Is butter a pure substance? Why or why not?A. Yes, it is. Only fat is its component. B. No, it is not. It is a mixture of fat and water and other components." 2: C. Either A or B DOC D. Neither A nor BV 0519171 PHOITA 1034X3 Il. Identification jon Directions: bongisasA.Identify whether the underlined phrases in the following paragraphs are chemical change, physical change, or neither. Lyn and Tony ordered fried chicken. While they waited, they cut slices from a loaf of warm French bread-yum! Their fried chicken was delicious. But poor Tony! The waiter was hurrying so much that he spilled the whole plate on him. Tony was sweet about it, though. Lyn and the waiter got him cleaned up pretty well. Tony ordered a hamburger after that. He also ordered baked potato, but he had to send it back to be cooked some more, because it was still hard. It came back looking rather black, but Tony said it tasted fine. B. Identify at least one chemical change and one physical change mentioned in the following paragraphs. Thank goodness it was a warm evening. Tony and Lyn drive with the windows rolled down because Tony was starting to smell a little like a fish market. of enofjonAt the prom, they actually danced in the moonlight! They have a wonderful time. It really wasn't anyone's fault that Tony caught the edge of his sleeve on fire reaching over the snack table - They think too many little candles were burning on it. Mrs. Donaldson was mad that Tony dunked his arm in the punch bowl to put the fire out, but honestly what else could he do? He tipped over the vase of flowers to get the punch bowl in time, and it shattered into a thousand pieces. Everyone stopped, stared, but no one got hurt On the way home, they happened to pass the tuxedo rental home (Tabuh Nha), and Lyn saw a "Help wanted" sign. That was lucky, said Tony - he was going to need a job to pay for what happened to his suit!KEY TO PRACTICE 1. The dog tore that little hole in his trousers: Tearing is a physical change because the identity of the fabric has not been altered. light the candle: A burning candle is an example of a chemical change because the candle is not the same substance after it is burned. put ice water in the glasses: No change in any substance occurs, so the phrase describes neither a chemical nor a physical change. The ice melted: This a change in state, so it is a physical change. 2. a. Table sugar Pure substance b. Table salt Pure substance c. lodized salt Mixture d. Brown sugar Mixture e. Distilled water Pure substance f. Soft drinks Mixture g. Oxygen gas (in tank) Pure substance h. Human breath Mixture 3. FERROUS SULFATE SODIUM CHLORIDE CARBON DIOXIDE WATER CARBON MONOXIDE