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Raisins are brown because they are grapes that have been dried out in the sun. Usually, the "brown raisins" start out as purple grapes. The white ones turn a bit lighter brown, not the dark brown as most of us are accustomed to from SunMaid and such, so they start out purple. And then, the sun's rays heat and dry out the grapes, and they shrivel up, creating that pruny finish - like how your fingers are after they've been in water for a large amount of time. Just like our skin, grapes shrivel up when they dry out. Also, just like our skin, it loses it's color as it dries out. The vibrant purple grape is changed into a dark brown, shriveled up grape - thus creating a raisin! IN SUM: The sun's "heating/drying the grapes" process discolors the grapes.
Hope you found this useful. :) Best of wishes! Xx
What else can I help you with?
Why do you think the raisins look different after soaking them in water?
I think raisins look different after soaking in water because it soaks up all the moisture. Think about when you go to the pool and swim for a long time. Doesnt your skin get wrinkled? Its the same thing with the raisins.
What is the meaning of the shiveled?
When something becomes shriveled, it becomes shrunken and wrinkled. For example, raisins are shriveled. Dead leaves and flowers shrivel.
Why do raisins dance in carbon dioxide?
Raisins "dance" in carbon dioxide because the gas forms bubbles on their wrinkled surface, making them float to the top. As the bubbles burst at the surface, the raisins sink back down. This rising and sinking motion gives the illusion that the raisins are dancing in the carbon dioxide.
How does osmosis affect raisins?
Osmosis affects raisins by causing them to lose water when placed in a hypertonic solution, such as saltwater. As water moves out of the raisins to balance the concentration of solutes outside, they shrivel and become wrinkled. Conversely, if raisins are placed in a hypotonic solution, like plain water, they can absorb water through osmosis, causing them to swell and regain some of their original size and texture.
What would happen if you put raisins in salt water?
When raisins are placed in salt water, they will undergo osmosis, which is the movement of water across a semipermeable membrane. The concentrated salt solution outside the raisins will draw water out of the raisins, causing them to shrink and become wrinkled as they lose moisture. This process can lead to the raisins appearing smaller and more shriveled over time. If left in the salt water for an extended period, they may become significantly dehydrated.
What is the best theory for osmosis with grapes and raisins in salt and fresh water?
The best theory for osmosis in the context of grapes and raisins in salt and fresh water is the semi-permeable membrane theory. When grapes are placed in fresh water, water enters the cells through osmosis, causing them to swell and become plump. Conversely, when raisins are placed in salt water, water moves out of the cells to balance the concentration of solutes, leading to the raisins shrinking and becoming wrinkled. This demonstrates the movement of water across a semi-permeable membrane in response to concentration gradients.
What are the genes of a wrinkled pea plant seed?
The wrinkled seed is a round cell but has the ressivienie wrinkled seed in it.
Why does a wrinkled face bat have a wrinkled face?
yes
What is the name of a wrinkled fabric?
Plisse fabric has a wrinkled finish.
When was Wrinkled Toadlet created?
Wrinkled Toadlet was created in 1916.
When was Wrinkled Hornbill created?
Wrinkled Hornbill was created in 1832.
What is a sentence using the word wrinkled?
His wrinkled brow precluded further question. The bunny wrinkled his nose, and then he hopped away.
