「主题与语篇填空」Metals expand when 1.(heat)and contractwhen cooled. How do they react with different 2.(substance)? Let's do a simple experiment.The aim of this experiment is to discover 3.iron rusts in dry air and in ordinary water. To carry out theexperiment, you need the 4.(fo...
「主题与语篇填空』Metals expand when 1.(heat)and contractwhen cooled.How do they react with different 2.(substance)?Let's do a simple experiment.The aim of this experiment is to discover 3.iron rusts in dry air and in ordinary water.To carry out theexperiment,you need the 4.(follow)...
When the water dispenser has not been used for a long time If the dispenser has not been used recently the first glass of water may not be as cool. (The residual water in the water pipe may become hot.) Dispensers may need approximately 2 to 3 hours to chill...
The first encounter many gardeners have with mulch fungi is when they see “mold” growing in the chips or at the interface of mulch and soil. Mold gets a bad rap with many homeowners when they find it after water damage in their house, so perhaps they assume it is also bad for their...
and separate most of the fat from the liquid—I like to keep some of it for flavor. When cooled the mixture creates a gelatinous mixture that acts as a natural thickener for gravy. If making from a whole turkey, add more liquid as the turkey cooks so the bottom of the pan doesn’...
A portable air conditioner’s primary job is to pull in room air, chill it to the correct temperature by removing heat, and then circulate the cooled air back into the area. The basic AC components involved include: The evaporator coil and the refrigerant are responsible for cooling the air...
The weather has FINALLY cooled off and outdoor activities abound. Check out our list of great things to do in October in Houston, and get started making memories with your loved ones. Kemah's Boo on the Boardwalk EVERY WEEKEND IN OCTOBER Boo on the Boardwalk is back and as hauntingly ...
We use this idea in gadgets such as thermometers, which measure temperatures precisely using metals that expand when they're heated and contract when they're cooled. Some materials signal temperature changes even more dramatically by changing color as they get hotter or colder: we say they're ...
When liquid water evaporates and turns to water vapor, it absorbs heat, known as the latent heat of evaporation, which it has to remove from something nearby (a panting dog or a sweating athlete, perhaps). Putting this science to practical use, we can use evaporation to remove the heat ...
When you want to finish over a high heat, you transfer the meat to the other side. Put the dried mushrooms into a bowl and pour over enough boiling water to just cover. Leave to soak until soft, then finely chop the mushrooms and return to the soaking liquid. Set aside. Put the ...