GRADE 7 MOCK EXAM 2

It presents general statements that answer each research question.

• Methodology

• Conclusion

• Hypothesis

• Recommendation

Which of the following is not true in determining the number of significant figures in measurements.

• Zeroes that percede the first nonzero digits and indicate the location of the decimal point are significant.

• Zeroes at the end of a number are significant if they are to the right of the decimal point.

• All non zero digits are significant.

• Zeroes between two significant digits are significant.

What is the colloid type of a SMOKE?

• Solid Aerosol

• Sol

• Emulsion

• Solid Emulsion

It is a qualitative description of substances that can be dissolved in a given solvent

• concentration

• Soluble

• Immiscible

• Miscible

CHEMISTRY ROCKET:

It is being released by acid and base reaction or vinegar and baking soda reaction.

• Nitrous oxide

• Methane

• Carbon dioxide

• Carbon oxide

Kind of fungus that fuzzy stuff growing on the food in your mold terrarium.

• Protists

• Germs

• Bacteria

• Molds

Whose cells have no definite nucleus surrounded by a nuclear membrane.

• Bacteria

• Fungus

• Eukaryotes

• Prokaryotes

It is occur when sulfur dioxide and oxide of nitrogen react in the atmosphere with water, oxygen and chemical to form a mild solution of sulfuric acid and nitric acid.

• Base

• Global warming

• Acid rain

• Compound

Which of the following elements does not belong to the Sanderson line?

• Bi (Bismuth)

• Po (Polonium)

• At (Astatine)

• Te (Tellurium)

What science process skill is displayed when a student groups substances according to their state of matter?

• Communicating

• Classifying

• Defining operationally

• Observing