of this dye changes when it is heated. The dye is normally transparent (透明的) and does not absorb (吸收...为什么有些杯子遇热后会变色？Have you ever had a mug that changes color when you put hot water in it? For example ……

Do you know about “magical” mugs (马克杯)? When you fill one with hot water, its color changes or you... dye (无色染料), which switches between two chemical forms when the temperature changes. When the mug ……

?A. The dye makes the skin thinner.A. The dye makes the skin thinner.B. The dye changes the skin color.B. The dye changes the skin color.C. The dye makes the skin scatter less light.C. The dye makes ……

selection (自然选择).However when heated, the structure of crustacyanin changes. This makes the red color... in the shell called astaxanthin (虾青素) is behind the change of color. This chemical is red ……

parts have a lighter color. When you unfold the cloth, you’ll see beautiful patterns. .... When you unfold the cloth, you’ll see beautiful patterns. In the 1960s, tie-dye became ……

and held the dye, whether the dye changed color when its pH changed, and how their thickness compared...线) that changes color, from bright red to dark purple, when a surgical wound becomes infected (感染 ……

Chows with milk-white fur resembling that of a panda and dye them when they are young to help them... said. “We select Chow Chows with milk-white fur resembling that of a panda and dye them when ……

) range is reached, the color change is clearly visible and warns the consumer,” Anna Hezinger, one... that change color if an athlete becomes dehydrated (脱水) and needs water. As body fluids (液体) drop, sweat ……

) and dyed, some parts become dark blue, while other parts have a lighter color. When you unfold... become dark blue, while other parts have a lighter color. When you unfold the cloth, you’ll see ……

Scientists have found a dye that makes skin transparentScientists have found a dye that makes skin... they washed away the dye, the skin looked normal again. The dye doesn’t hurt animals.When scientists ……

other parts have a lighter color. When you open out the cloth, you’ll see beautiful patterns... a lighter color. When you open out the cloth, you’ll see beautiful patterns.   ……

a material which could hold the dye in order to make sutures (手术缝线) that would change color when... they could hold the dye and if the dye changed color when its pH increased. Her school transitioned to remote ……

blue, while other parts have a lighter color. When you unfold the cloth, you’ll see beautiful... a lighter color. When you unfold the cloth, you’ll see beautiful patterns (图案). “Each piece ……

other parts have a lighter color. When you unfold the cloth, you’ll see beautiful patterns. ..., some parts become dark blue, while other parts have a lighter color. When you unfold the cloth, you ……

parts have a lighter color. When you unfold the cloth, you’ll then see beautiful patterns emerge. ... parts become dark blue, while other parts have a lighter color. When you unfold the cloth, you’ll ……