Analysis 377 



559. Gasoline burns quietly enough in a stove, but if a spark gets 



into a can containing gasoline vapor, there is a violent 

 explosion. 



560. Turpentine will remove fresh paint. 



General Review Inference Exercise 



Explain the following : 



561. We can remove fresh stains by pouring boiling water through 



them. 



562. A ship can be more heavily laden in salt water than in fresh 



water. 



563. Water flies off a wet dog when he shakes himself. 



564. In cooking molasses candy, baking soda is often added to 



make it lighter. 



565. An egg will not stand on end. 



566. Women who carry bundles on their heads stand up very 



straight. 



567. To get all crayon marks off a blackboard, the janitor uses 



vinegar in water. 



568. Sunlight makes your skin darker. 



569. Water puts out a fire. 



570. You get a much worse shock from a live wire when your hands 



are wet than when they are dry. 



571. Stone or brick buildings are cool in summer but warm in 



winter. 



572. If you take the handle off a faucet, it is almost impossible to 



turn the valve with your fingers. 



573. Sparks fly from a grindstone when you are sharpening a 



knife. 



574. Violin strings are spoiled by getting wet. 



575. The oxygen of the air gets into the blood from the lungs, 



although there are no holes from the blood vessels into the 

 lungs. 



576. You push a button or turn a key switch and an electric lamp 



lights. 



577. A rubber comb, rubbed on a piece of wool cloth, will attract 



bits of paper to it. 



578. People whose eyes no longer adjust themselves have to have 



" reading glasses " and " distance glasses " to see clearly. 



