First Quarter Test in Science 6

Which is true about heterogeneous mixtures?

• A. Composition of mixtures are the same all throughout

• B. Composition of mixtures are visible

• C. Composition of mixtures can be easily identified

• D. Both B and C

Which best describes the characteristics of the homogeneous (uniform) mixture?

• A.  The individual substances are recognizable

• B.  The phases or substances are all visible

• C. The mixture does not blend throughout

• D. Only one phase is seen or visible after mixing the different components.

What do you call a mixture with substances that are distributed evenly?

• A. solute

• B. solvent

• C. solution

• C. mixture

What happens when mongo seeds are mixed with sand?

• A.  there will be a new substance formed

• B.   mongo grains will disappear

• C.   mongo grains will retain their characteristics

• D.   mongo grains will dissolve in sand

In homogeneous mixture substances mixed thoroughly, appeared as one substance. You can no longer distinguish one component from the other. What is

    the other term for the homogenous mixture?

• A. uniform mixture

•  B. non-uniform

• C. solute

• D. Solvent

The given substances are examples of a uniform mixture except one. What is it?

• A. wine

• B. sand and gravel

• C. vinegar

• D. cement

What is best described by the combination of two or more substances that are

    not chemically combined but formed a new substance?

• A. It is gas

• B. It is solid

• C. It is liquid

• D. It is mixture

The following cups shown have water at

different temperatures, during which cup of water will powdered milk dissolve fastest?

• A. first

• B. second

• C. third

• D. fourth

Which of the following statements is TRUE about a heterogeneous mixture?

• A. Heterogeneous mixtures have single components.

• B. All mixtures are heterogeneous.

• C. Heterogeneous mixtures always have 2 or more phases.

• D. All of the above

In which glass of liquid is powdered milk hard to dissolve?

• A. In a glass of cold water

• B. In a glass of hot water

• C. In a glass of tap water

• D. None of the above