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When you blow into a straw in red cabbage juice, the color will change to a shade of blue or green. This occurs because the carbon dioxide from your breath reacts with the anthocyanins in the red cabbage juice, which are pH indicators. The increase in acidity from the carbon dioxide leads to a shift in color.
What else can I help you with?
Does blowing through a shorter straw make a higher pitch than blowing through a long straw?
Blowing through a shorter straw creates a higher pitch sound because the shorter length of the straw produces a higher frequency vibration upon blowing. This is due to the shorter distance the air needs to travel through the straw in order to create sound waves.
How does the fluid descend from the straw?
Gravity or the force of you sucking/blowing on said straw.
Why does juice rise up the straw on a hot day?
As you have more than likely taken the juice from the fridge, when you inserted the straw you have created a way the juice can escape. (usually by you sucking on the straw) But as the juice heats up, it also expands slightly causing pressure to build up in the juice container and forcing it to go up the straw to find a way out.
Blowing through a starw can produce a sound because?
blowing through a straw,air touches the walls of the straw and makes the it vibrate and as it is a light body it makessound
Can you drink juice on the moon using a straw?
Yes. Drinking with a straw will only be easier, as there is less gravity to hold down the juice.
What two things vibrate to cause straw sound?
blowing holding
What is a simple way to oxygenate water in a small bowl for sea monkeys?
They sell what looks like a drinking straw sized bellows. We tried blowing through a straw but it is too rough on them. (Note: blowing through a straw injects CO2 to ~40ppm not as much O2)
How do juice boxes work?
Stick it in and suck it. Even better insrtuctions Get it out of the fridge take the straw off the back unwrap the straw poke a hole in the Box Then u put the straw in the box then drink it Enjoy
Why does blowing through a longer straw make a deeper sound?
Blowing through a longer straw creates a deeper sound because the longer straw allows for a longer column of air to vibrate. The longer column of air vibrates at a lower frequency, producing a deeper sound.
What can you pick up with a straw?
milk and soda and grape juice
What two things that vibrate from a straw?
The liquid inside the straw vibrates as it gets sucked up, creating a slurping noise. The air inside the straw also vibrates as it is pushed out when blowing into the straw, producing a whistling sound.
What is helps to suck juice from a drinking straw?
The body part that best helps to suck up juice from a drinking straw is the tongue. When a person sucks liquid through a straw, the jaw muscles and tongue work in conjunction to bring the liquid up.
