Alexander Fleming noticed that bacteria growing on a plate of agar did not grow next to a mold that was growing on the same plate. He wrote in his laboratory report “The mold may be producing a substance that kills bacteria”. This statement is best described as ___________.

A beaker was filled with water up to 40ml. mark. A small stone was slowly lowered into the beaker, and it was observed that the level rose to 45ml. What does the change in the level of the water represents?

If we combine 60g. of solute in 100g of solvent. What will be the total volume of a solution?

Why does boiling of water in kettle overflow and spill?

What do you call to atoms that joined together to form new substance?

What do you call to a liquid that able to pass through the filter paper?

We have different techniques in separating mixture. Which of the following is NOT used to separate mixture?

What do you call to a material that is made up of only one type of atom an example of this is Hydrogen?

What do you call to the solid that does not dissolve in a liquid and remains suspended in the liquid for a time.

What do you call to the small particles that cannot pass through the filter paper?

What do you call to the type of solution that allows the light to pass through it?

What do you call to a solid solution of two or more metals?

What method is used to separate two substances with different boiling points?

What do you call to a mixture of a solute and solvent?

A sugar solution is prepared by adding dissolving sugar in water. Sugar solution consists of two components, namely, sugar and water. Which is solute?

When sugar dissolves in water, the two substances appear as one. The sugar particles can no longer be identified. However, the taste of the water proves that the sugar was not lost after mixing. Its chemical property is retained and so the water taste sweet. What kind of solution is this?

Homogeneous mixture has the same properties. It means that the substances mixed thoroughly and after stirring, it appeared as one substance. You can no longer distinguish one component from the other. What is the other term for homogenous mixture?

There are five kinds of solution. Gas in liquid is one of it, therefore, which of the given example is one of the solution?

It is the combination of two or more substances that are not chemically combined and a new substance was formed. What do you mean by this?

Let us assumed that the composition varies from one region to another, with at least two phases that remain separate from each other, with clearly identifiable properties. This is a heterogeneous or ___ mixture?

Biko, nilupak and buko salad is an example of what kind of mixture?

Mix orange juice powder to water is what kind of mixture?

2. From what mixture do oxygen , carbon dioxide and nitrogen came from ?

1. How are mixture formed if sugar dissolve in water?