What do you call the information gathered during experiments?
Theory
Data
Conclusion
Hypothesis
In an experiment, what variable needs to be controlled to determine the effect of fertilizer on the growth of an orchid plant?
orchid plants and fertilizer
the concentration of fertilizer to be used
the orchid plants that will be treated with fertilizer
growth of orchid plant
What is the effect of the amount of fertilizer on the BEST growth of the orchid plant?
Option A
Option B
Option C
Option C
What is the purpose of doing multiple trials in an experiment?
To get as much data as possible.
Eliminate observations that are not typical and error free
To double check the results so they are the same each time.
To make sure the procedure is done correctly every time.
A cough syrup is an example of what substance?
Colloid
Solution
Suspension
Mixture
In an experiment, Mr. Crab asks his staff to prepare and acid solution. What is the proper way of mixing water and an acid?
Mix acid and water in a container at the same time
Add acid to water
Add water directly in the concentrated acid container
Ask your Manager's supervision to mix the acid and water
Why does an increase in temperature of the solvent will speed up the dissolving process?
The higher the temperature, the solute dissolves quickly
The lower the temperature, the solute dissolves quickly
The lower the temperature, the solute dissolves slowly
The higher the temperature, the solute dissolves slowly
What is the method of gathering information by using our senses in a scientific investigation?
observation
inference
experiment
investigation
Mixture of different materials combined keeping their own properties. Which is an example of a mixture?
Rock salt
Sugar
Water
Seasoning
Salt is made up of what elements?
Sodium and Oxygen
Sodium and chloride
Sodium and Chlorine
Sodium and Copper
How will you prepare an unsaturated solution?
Stir the powder in the liquid
Freeze the mixture
Add a lesser amount of powder to the liquid
Add a larger amount of solute in a lower amount of solvent
Which statement does NOT describes a compound?
Can be broken by chemical means
Composed of two or more elements that bond together
Has a unique property that are different individual elements
Composed of two atoms bond together
A compound is composed of two or more elements combined chemically?
24 Karat Gold
Sugar
Table salt
Chalk
Which material is BEST conductor of electricity?
Dull and brittle crystalline solid
A gel-like and soft material
A shiny and malleable solid
A yellowish-greenish poisonous gas
Which of the following substance can be used as alternative antiseptic solution to a wound?
Vinegar
Wine
Baking soda
Muriatic acid
What skill is used by a scientist when he listens to the sounds that are produced by whales?
Making observations
Interpreting data
Drawing conclusions
Making a hypothesis
Which hypothesis is written correctly?
If I heat up a tennis ball it will bounce high
If I freeze a tennis ball, then it will not bounce as high
It will not bounce as high as one that is not frozen
If frozen tennis balls will not bounce as high
Which pair of substances and mixtures is INCORRECT according to their use?
Silver and gold: jewelry making
Hydrogen peroxide: wine making
oxygen and carbon dioxide: respiration and photosynthesis
iodized salt: iodine deficiency supplement
A scientist conducted an experiment to determine how the amount of salt in a body of water affect the number of plants that can be live in water. Which is the independent variable?
Temperature of the water
Water
Number of plants in the water
Amount of salt in water
What is the correct order of the scientific method?
Hypothesis,experimentation,interpretation,problem,conclusion
Problem,interpretation, hypothesis, experiment, conclusion
Problem, hypothesis, experiment, interpretation, conclusion
Problem,hypothesis,experiment,conclusion,interpretation
How does the solubility of a solid change when the temperature of the liquid solvent is increased?
The solubility decreases
The solubility increases
The change in solubility is unprdictable
There is no change in the solubility
What type of solution in which there is a relatively small amount of solute dissolved in the solution?
Concentrated
Supersaturated
Saturated
Diluted
How many mL of isopropyl alcohol are present in a 200 mL of 70% alcohol solution?
70 mL
140 mL
100 mL
200 mL
What substance dissolved another substance in a greater amount?
Solvent
Solution
Niether solute nor solvent
Solute
A sugar solution was made by dissolving one teaspoon of sugar in one glass of water. What is the solute?
1 glass of water
sugar and teaspoon
1 teaspoon of sugar
sugar and water