A if both statements are correct;

B if both statements are wrong;

C if the first statement is correct and the second statement is wrong; and

D if the first statement is wrong and the second statement is correct.




1.
•Albert Einstein is a physicist who developed the general theory of relativity •Galileo Galilei created the first modem telescope and supported the Geocentric Theory.

2.
•A scientist must find solutions of problems even in difficult situation to portray humility.
•Being open minded, a person must accept mistakes and ideas from other people.

3.
•A hypothesis is an educated guess that is the tentative answer to the problem.
•An independent variable in an experiment must not be limited.

4.
•In an experiment, I want to measure the exact amount of liquid so I used test tube.
•We are instructed to get the mass of a powder in a beaker so we place the beaker directly on the balance.

5.
•I want to separate the mixture of sand and water so I used evaporating dish.
•I want to boil the solution so I place the beaker on the ring stand with wire gauze.

6.
•It is allowed to eat inside the laboratory if you are not dealing with deadly chemicals.
•Wearing laboratory gown must always be used inside the science laboratory.

7.
•Silver nitrate is an example of element that is used to stop the bleeding of wounded skin.
•Carbon dioxide is a compound that is needed by plants in photosynthesis.

8.
•Homogeneous mixture is a mixture of two or more substances.
•Heterogeneous mixture can be classified as colloid, suspension and solution.

9.
•Colloids can be solid, liquid or gas depending on the physical state of the dispersing medium.
•There are solutions that can be classified as solid, liquid or gas depending on the physical state of the solvent.

10.
•Pure substance has definite composition while mixture has distinct composition.
•Mixture can be classified as heterogeneous and homogeneous while pure substance can be classified as elements, compounds, acid and base.​