Multiple Choice: In every item there are options. Encircle the letter of the correct answer.
1. Jabar wants to investigate the effect of kalabo-sambong leaves extracts on the soothing effect of liniment oil. He decided to set up an experiment to find out. To make a fair test, what would Jabar control?
A. Source of kalabo-sambong leaves
B. Ratio of kalabo-sambong extract
C.amount of niliment oilproduced
D. Volume of water applied
2. After experiment, Timothea accepts her hypothesis that an increase in the amount of cow manure fertilizer dissolved in water will mean an increase in the acidity of the soil mixture. Which component of a scientific investigation is being described?
A. Interpreting data
B. Making a conclusion
C.writing an observation
D. Defining a problem
3. Lexi Faith wanted to investigate which combination of rubber tree latex and cassava starch will give the most heat resistant bioplastic, Which of the following would be the dependent variable of the experiment?
A. Percentage composition of mixture
B. Heat resistance of bioplastic
C.Amount of rubber latexadded
D. Volume of bioplasticproduced
4. After conducting a scientific investigation on sinaw-sinaw plant extract as an effective treatment to control the growth of E.coli, Carl Joseph headed the group participation in a Regional Science Fair to tell about their findings. This scenario describes which component of a scientific investigation? A. Formulating a generalization
B. Stating a problem
C.Communicating with others
D. Drafting a hypothesis
5. How will you prepare an unsaturated solution?
A. Freeze the mixture
B. Stir the powder in the liquid
C.Add less amount of powder to the liquid
D. Add more amount of solute in a lower amount of solvent
6. To make a solute dissolve more quickly in a solvent, which would you do? A. Stir it
B. Do not stir the solution
C.Let the solute settle down
D. Nothing to do with the solute ​