Quiz in Science 4

The picture above shows a piece of butter in the pan. If the stove is turned on, what change could happen to the piece of butter? What can you conclude about what happens to the butter when heated?

• a.   The butter gets bigger when heated.

• b.   The butter will melt when heated.

• c.   The butter increases its shape when heated.

• d.   The butter increases its size when heated.

Which of the following statements is true when melted butter and water are mixed?

• a.   Liquid butter will dissolve in water.

• b.  Liquid butter settle at the bottom.

• c.   Liquid butter and water will completely mix.

• d.  Liquid butter will float on top of the water.

The illustration shows the difference between the homogeneous and heterogeneous mixture. Which is the best description of homogeneous and heterogeneous mixture?

• a.         Homogeneous mixture has a uniform appearance while heterogeneous mixture has a non-uniform appearance.

• b.         Homogeneous mixture looks watery while heterogeneous mixture looks dry.

• c.         Homogenous mixture is a liquid substance while heterogeneous mixture is a solid substance.

• d.         Homogeneous mixture has a bright color while heterogeneous mixture ha a pale color.

Mother mix the all-purpose flour, cornstarch, baking powder, salt and pepper in a large bowl. Where do you think mother will use this mixture?

• a.       For cooking

• b.       For construction

• c.      For cleaning

• d.      For washing

Lina is trying to build a fire in the stove. She filled the stove with firewood. She lit a piece of paper to make the firewood burn. However, she could not make the wood produce fire. What do you think is needed?

• a.  more firewood

• b.  more air

• c. more paper

• d. more water