This is an independent preparation course. It is not the official CAEC Science test, is not affiliated with or endorsed by the CAEC Testing Service (Alberta Education and Childcare) or any province or territory, and does not award the Canadian Adult Education Credential. Practice scores here are feedback only, not official CAEC results.
Magsimula sa mga aralin CAEC Science Preparation: Lessons: mga 300 minutong pagbasa. Saklaw ng mga aralin ang bawat tanong sa pagsusulit.
Tanong 1 ng 16
In an experiment, what is the independent variable? Ipakita ang sagot Sagot: C. The factor the scientist changes on purpose
The independent (manipulated) variable is the one the scientist chooses and changes.
Tanong 2 ng 16
In an experiment, what is the dependent variable? Ipakita ang sagot Sagot: D. The factor measured to see the effect
The dependent (responding) variable is what you measure. It may depend on the change you made.
Tanong 3 ng 16
Why do scientists keep controlled variables the same in a fair test? Ipakita ang sagot Sagot: B. So only the independent variable can explain the results
If only one factor changes, you can tell what caused the result.
Tanong 4 ng 16
What is the independent variable in Maya's experiment? Maya wants to know if the amount of salt in water changes how fast an ice cube melts. She fills four identical cups with 200 mL of tap water at room temperature. She adds 0 g, 5 g, 10 g and 15 g of salt, drops one ice cube of the same size into each cup and times how long each cube takes to melt.
Ipakita ang sagot Sagot: A. The amount of salt in the water
Maya chooses and changes the amount of salt: 0, 5, 10 and 15 g.
Tanong 5 ng 16
What is the dependent variable in Maya's experiment? Maya wants to know if the amount of salt in water changes how fast an ice cube melts. She fills four identical cups with 200 mL of tap water at room temperature. She adds 0 g, 5 g, 10 g and 15 g of salt, drops one ice cube of the same size into each cup and times how long each cube takes to melt.
Ipakita ang sagot Sagot: D. The time each ice cube takes to melt
Maya measures melting time to see if it depends on the salt.
Tanong 6 ng 16
Which cup acts as the control in Maya's experiment? Maya wants to know if the amount of salt in water changes how fast an ice cube melts. She fills four identical cups with 200 mL of tap water at room temperature. She adds 0 g, 5 g, 10 g and 15 g of salt, drops one ice cube of the same size into each cup and times how long each cube takes to melt.
Ipakita ang sagot Sagot: A. The cup with 0 g of salt
The cup with no salt is the normal condition that the salted cups are compared with.
Tanong 7 ng 16
Which is a controlled variable in Maya's experiment? Maya wants to know if the amount of salt in water changes how fast an ice cube melts. She fills four identical cups with 200 mL of tap water at room temperature. She adds 0 g, 5 g, 10 g and 15 g of salt, drops one ice cube of the same size into each cup and times how long each cube takes to melt.
Ipakita ang sagot Sagot: B. The volume of water
Every cup has 200 mL of water, so volume is kept the same.
Tanong 8 ng 16
Which group is the control group in Jordan's experiment? Jordan plants 40 bean seeds in identical pots with the same soil. He randomly puts 20 pots in Group A and 20 in Group B. Both groups get the same light and 100 mL of water every two days. Group B also gets plant food once a week. After four weeks he measures the height of every plant.
Ipakita ang sagot Sagot: A. Group A, which gets no plant food
The control group gets everything except the treatment being tested, so Group A is the control.
Tanong 9 ng 16
Why did Jordan put the pots into the two groups randomly? Jordan plants 40 bean seeds in identical pots with the same soil. He randomly puts 20 pots in Group A and 20 in Group B. Both groups get the same light and 100 mL of water every two days. Group B also gets plant food once a week. After four weeks he measures the height of every plant.
Ipakita ang sagot Sagot: B. To avoid choosing the best seeds for one group
Random assignment limits bias. Jordan cannot, even by accident, give one group the best seeds.
Tanong 10 ng 16
Which is the best testable question for a science fair? Ipakita ang sagot Sagot: C. Does drop height change how high a ball bounces?
A good testable question names something you can change (drop height) and something you can measure (bounce height).
Tanong 11 ng 16
Which statement is written as a hypothesis? Ipakita ang sagot Sagot: A. If bread is kept in the fridge, then it will grow mould more slowly, because cold slows mould growth
A hypothesis is a testable prediction with a reason. "If… then… because…" is a common way to write one.
Tanong 12 ng 16
A student notices that a puddle in the sun dries faster than a puddle in the shade. Which prediction is based on this pattern? Ipakita ang sagot Sagot: B. Wet clothes hung in the sun will dry faster than in the shade
A prediction applies an observed pattern to a new situation that can then be tested.
Tanong 13 ng 16
Tariq tests which paper towel brand holds the most water. He uses a full sheet of Brand X and a half sheet of Brand Y. What is wrong with his test? Ipakita ang sagot Sagot: B. The sheet size was not kept the same
Sheet size is a variable that affects how much water is held. It should be controlled so only the brand changes.
Tanong 14 ng 16
Why should each test in an experiment be repeated several times? Ipakita ang sagot Sagot: B. To check results are consistent and reduce one-off mistakes
Repeated trials show whether a result happens again. Averaging them reduces random error.
Tanong 15 ng 16
A researcher wants to know how much sleep teenagers in Alberta get. She surveys only students at one school's early-morning hockey program. What is the main problem? Ipakita ang sagot Sagot: B. The sample does not represent all teens in Alberta
A sample should represent the whole group. Early-morning athletes may sleep differently from other teens.
Tanong 16 ng 16
A student tests whether music helps people do a puzzle faster. Each person does the puzzle first in silence, then with music. Which change would most improve the design? Ipakita ang sagot Sagot: A. Use a different puzzle of equal difficulty the second time
People get faster the second time they do the same puzzle. Using an equal but different puzzle removes this practice effect.
Keyboard: 1–4 para sumagot, Enter para sa susunod na tanong.
Ang tunay na pagsusulit: 55% on each CAEC test
Mga kaugnay na pagsusulit CAEC Mathematics Preparation Course 100 tanong, mga 360 min, sertipiko CAEC Reading Preparation Course 93 tanong, mga 300 min, sertipiko CAEC Social Studies Preparation Course 94 tanong, mga 300 min, sertipiko CAEC Writing Preparation Course 98 tanong, mga 300 min, sertipiko GED Mathematical Reasoning Preparation Course 100 tanong, mga 420 min, sertipiko GED Reasoning Through Language Arts Course 91 tanong, mga 300 min, sertipiko