26 T1 L2 Fair Test E and A
Interactive Video
•
Science
•
9th Grade
•
Practice Problem
•
Hard
Paula van Berkel
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Evidence is...
Bewyse is ...
an opinion about what happened
’n mening oor wat gebeur het
information or facts that support a conclusion
inligting of feite wat ’n gevolgtrekking ondersteun
a guess based on feelings
’n raaiskoot gebaseer op gevoelens
a prediction of future events
’n voorspelling van toekomstige gebeure
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What makes an experiment a fair test?
Wat maak ’n eksperiment ’n regverdige toets?
Changing all the variables at the same time.
Verander al die veranderlikes op dieselfde tyd.
Keeping all variables the same except the one being tested.
Hou al die veranderlikes dieselfde behalwe die een wat getoets word.
Using as many materials as possible.
Gebruik soveel materiaal as moontlik.
Asking for other people’s opinions.
Vra vir ander mense se menings.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
At this stage, it looks like the only changing (independent) variable is the washing liquid, but there is one other component that could also affect how the stains are removed. What is this component?
Op hierdie stadium lyk dit asof die enigste veranderlike (onafhanklike) die wasmiddel is, maar daar is nog ’n komponent wat ook kan beïnvloed hoe die vlekke verwyder word. Wat is hierdie komponent?
4.
OPEN ENDED QUESTION
3 mins • 6 pts
What are the variables that need to be kept the same in the washing liquid test to make it a fair experiment?
Watter veranderlikes moet dieselfde gehou word in die wasmiddeltoets om dit ’n regverdige eksperiment te maak?
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would the Control look like for this Experiment?
Hoe sou die kontrole vir hierdie eksperiment lyk?
Cloth washed with the most expensive washing liquid.
Lap gewas met die duurste wasmiddel.
Cloth washed with no liquid and no water.
Lap gewas sonder enige vloeistof en sonder water.
Cloth washed with water only.
Lap gewas net met water aleenlik.
Cloth washed with all three washing liquids mixed together.
Lap gewas met al drie wasmiddels gemeng.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What extra information would adding the control provide?
Watter ekstra inligting sou die toevoeging van die kontrole verskaf?
It shows whether water alone can remove stains.
Dit wys of water alleen vlekke kan verwyder.
It shows which washing liquid is the most expensive.
Dit wys watter wasmiddel die duurste is.
It shows which cloth is the easiest to clean
Dit wys watter lap die maklikste skoonmaak.
It shows which stain is the hardest to remove.
Dit wys watter vlek die moeilikste verwyder.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to use Controls in medical trials?
Waarom is dit belangrik om kontroles in mediese toetse te gebruik?
To make the trial shorter.
Om die toets korter te maak.
To increase the number of participants.
Om die aantal deelnemers te verhoog.
To ensure the medicine tastes better.
Om te verseker dat die medisyne beter smaak.
To eliminate the placebo effect
Om die placebo-effek uit te skakel
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