[Q]: Which of the following solutions is better for the following goal:
Make a pop noise by mixing two chemicals together.

[A]: Take equal volumes of vinegar and baking soda, about a half cup each. Place each in a plastic soda bottle and push a cork into the top. The reaction between acid and base will make a gas and expel the cork. It will pop.

[Q]: Which of the following solutions is better for the following goal:
rattles

[A]: can be hurled by an infant

[Q]: Which of the following solutions is better for the following goal:
Create a sausage soup

[A]: Combine cooked sausage to a slow cooker along with cubed potatoes and chicken stock. Add water until the potatoes are covered and cook on low for 5 hours.

[Q]: Which of the following solutions is better for the following goal:
To prevent clumpy gravy when making it homemade,

[A]:
mix the flour into cold water before adding it t the hot ingredients.