Worksheets*PAG-ARALAN NG PAULIT -ULIT***
Total questions: 15
Worksheet time: 8mins
Which is the first step in designing a scientific investigation?
Aim or problem
Method or procedure
Listing of materials
Results including data
Which step includes summarizing your findings and explaining their significance in the context of your investigation?
Analyzing the result
Writing the conclusion
Identifying the problem.
Formulating a hypothesis
Which of the following research questions can you answer by doing an experiment?
Up to what age do turtles live?
Which types of soil can hold the greatest amount of water?
What is the average number of children in Filipino families?
Why is the same side of the moon always seen from the earth?
Grade 7 students conducted an experiment on how plants grow in warmer temperatures. Which of the following is the independent variable?
type of soil
growth of plants
amount of water used
temperature
A farmer experiments with different fertilizers on his corn crops to see which will hasten the growth of his plants. What is the dependent variable?
type of soil
growth of plants
type of fertilizer
different corn crops
A scientist who wants to study the effects of fertilizer on plant growth sets up an experiment. Plant A gets no fertilizer, Plant B gets 2 mg of fertilizer each day, and Plant C gets 5 mg of fertilizer. Which of the following steps in the scientific method did the scientist demonstrate?
experimenting
communicating results
analyzing data
making hypothesis
Which of the following is the correct order of the steps in doing a scientific investigation?
Ask a question, make a hypothesis, test the hypothesis, draw conclusions, and analyze the results.
Ask a question, analyze the results, make a hypothesis, test the hypothesis, and draw a conclusion.
Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions.
Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions.
Which of the following substances can be separated into simpler substances by chemical means?
aluminum
gold
saltwater
water
Silicon is a chemical element with the symbol Si and atomic number 14. How do you classify the element?
Metal
Metalloid
Non-metal
Semi-metal
Which of the following substances changes red litmus paper to blue?
lemon juice
vinegar
shampoo
water
Which of the following statements is true about compounds?
Compounds always have a variable composition.
Compounds are always made up of only two elements.
Compounds cannot be broken down into simpler substances.
Compounds can only be formed by chemical reactions between elements.
Aluminum is a silvery-white, lightweight metal. It is used in making kitchen utensils, window frames, and cans. Which of the following properties describes aluminum?
brittleness
combustibility
ductility
dullness
Substance A and substance B were tested for their physical characteristics. The results showed that substances A and B are malleable, heat conductor, shiny and ductile. What is the nature of substances A and B?
Acids
Metals
Metalloids
Nonmetals
Some metals like silver and gold are used in making jewelry. What property of these metals is considered for this purpose?
They are shiny.
They are conductors of heat.
They are corrosive.
They are conductors of heat.
Which of the elements is most needed by organisms for them to live and survive?
argon
hydrogen
nitrogen
oxygen
