
PISA MOCK SESSION - TEST 3
Quiz by JOHANNES T. LATRAS
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DAYLIGHTÂ
Which statement explains why daylight and darkness occur on Earth?Â

CLONINGÂ
Which sheep is Dolly identical to?Â

CLONINGÂ
In line 14, the part of the udder that was described as "very small piece" From the article text you can work out as what is meant by "a very small piece"Â

CLOTHESÂ
Which piece of laboratory equipment would be among the equipment you would need to check that the fabric is conducting electricity?Â

SUNSCREENSÂ
Which one of these statements is a scientific description of the role of the mineral oil and the zinc oxide in comparing the effectiveness of the sunscreens?

SUNSCREENSÂ
Which one of these questions were Mimi and Dean trying to answer?

SUNSCREENSÂ
Why was the second sheet of plastic pressed down?

ACID RAINÂ
A marble chip has a mass of 2.0 grams before being immersed in vinegar overnight. The chip is removed and dried the next day. What will the mass of the dried marble chip be?

GENETICALLY MODIFIED CROPSÂ
Corn was planted in 200 fields across the country. Why did the scientists use more than one site?

BIODIVERSITYÂ
In lines 9 and 10 it is stated that âFood web A represents a more diverse ecosystem with, as a result, many more alternative feeding pathways.â Look at FOOD WEB A. Only two animals in this food web have three direct (immediate) food sources. Which two animals are they?

BIODIVERSITYÂ
Food webs A and B are in different locations. Imagine if Leaf Hoppers died out in both locations. Which one of these is the best prediction and explanation for the effect this would have on the food webs?

BUSES
What is most likely to happen to the water in the cup?

FIT FOR DRINKINGÂ
The cleaning of water often happens in several steps, involving different techniques. The cleaning process shown in the figure involves four steps (numbered 1â4). In the second step, the water is collected in a settling pond. In what way does this step make the water cleaner?

TOOTH DECAY
What is the role of bacteria in dental caries?

The following graph shows the consumption of sugar and the amount of caries in different countries. Each country is represented by a dot in the graph.Â
Which one of the following statements is supported by the data given in the graph?

HOT WORK
Peter is working on repairs to an old house. He has left a bottle of water, some metal nails, and a piece of timber inside the boot of his car. After the car has been out in the sun for three hours, the temperature inside the car reaches about 40 ÂșC.
For drinks during the day, Peter has a cup of hot coffee, at a temperature of about 90 ÂșC, and a cup of cold mineral water, with a temperature of about 5 ÂșC. The cups are of identical type and size and the volume of each drink is the same. Peter leaves the cups sitting in a room where the temperature is about 20 ÂșC.
What are the temperatures of the coffee and the mineral water likely to be after 10 minutes?
MOUSEPOX
Critics have expressed concern that the mousepox virus could infect species other than mice. Which one of the following reasons is the best explanation for this concern?

TOBACCO SMOKING
Tobacco is smoked in cigarettes, cigars and pipes. Research shows that tobacco-related diseases kill nearly 13 500 people worldwide every day. It is predicted that, by 2020, tobacco-related diseases will cause 12% of all deaths globally.
Tobacco smoke contains many harmful substances. The most damaging substances are tar, nicotine and carbon monoxide
Tobacco smoke is inhaled into the lungs. Tar from the smoke is deposited in the lungs and this prevents the lungs from working properly.
Which one of the following is a function of the lungs?
Some people use nicotine patches to help them to give up smoking. The patches are put on skin and release nicotine into the blood. This helps to relieve cravings and withdrawal symptoms when people have stopped smoking.
To study the effectiveness of nicotine patches, a group of 100 smokers who want to give up smoking is chosen randomly. The group is to be studied for six months. The effectiveness of the nicotine patches is to be measured by finding out how many people in the group have not resumed smoking by the end of the study.
Which one of the following is the best experimental design?
STARLIGHTÂ
Toshio likes to look at stars. However, he cannot observe stars very well at night because he lives in a large city.
Last year Toshio visited the countryside where he observed a large number of stars that he cannot see when he is in the city
Why can many more stars be observed in the countryside than in large cities?
Toshio uses a telescope with a large diameter lens in order to observe stars of low brightness.
Why does using a telescope with a large diameter lens make it possible to observe stars of low brightness?
LIP GLOSSÂ
Oils and waxes are substances that will mix well together. Oils cannot be mixed with water, and waxes are not soluble in water.
Which one of the following is most likely to happen if a lot of water is splashed into the lipstick mixture while it is being heated?

When substances called emulsifiers are added, they allow oils and waxes to mix well with water.
Why does soap and water remove lipstick?

BREAD DOUGHÂ
Fermentation causes the dough to rise. Why does the dough rise?

A few hours after mixing the dough, the cook weighs the dough and observes that its weight has decreased. The weight of the dough is the same at the start of each of the four experiments shown below.
Which two experiments should the cook compare to test if the yeast is the cause of the loss of weight?
