Answer:
controlled: 2 drops of food coloring
independent: temperature of water
dependent: rate of diffusion
Explanation:
A controlled variable doesn't change throughout the whole experiment, a independent variable is something being tested, and a dependent variable is the results
Llowing certain substances to pass through it but not others, especially allowing the passage of a solvent but not of certain solutes.
Answer:
acceleration (a)=8 m/s square.
Answer: 345,000 calories
Explanation:
Calories in food such as candy bars refer to the amount of energy that the food has. Calories are also called Kilocalories because they are the equivalent of 1,000 calories.
If the candy bar contained 345 calories therefore, and 1 Calorie is 1,000 calories, the calories in the candy bar are:
= 345 * 1,000
= 345,000 calories
Answer:
A mixture is a combination of two or more pure substances that are not chemically combined. Mixtures are held together by physical forces and therefore can be separated physically.
