JISMO P3 P4 Olympichamp

Jenna learned about pollination in her science class. Pollination is the transfer of pollen grain from male to female flowers to produce fruits and seeds. This process could be done with the help of animals known as pollinators.

Jenna found some animals in her backyard as illustrated below and observed which ones are pollinators.

Which of the following options shows all the correct pollinators?

• Bee, bettle, mosquito, snail

• beetle, grasshopper, mosquito, snail

• butterfly, fly, grasshopper, hummingbird

• bee, butterfly, fly, hummingbird

Airi placed a stick into the sand on the beach as shown below. She then observed the changes in the length of the shadow from 7 am to 5 pm and recorded it in a graph. Which of the following graphs correctly display Airi's observation?
(Note : the sun is at 90 degree angle at noon)

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Light-emitting diodes (LED) are special lights that use less electricity but produce more light than regular bulbs. This helps save electricity and reduce waste. For this to work, the longer leg must be connected to the positive pole of the battery. Otherwise, the light will not turn on. Look at the illustrations below and see how the LEDs are connected to a battery.

Which of the following options shows all the circuit that will light up?

• a and e

• a, c, and d

• b, c, and d

• only e

Clara was balancing two paper cups using a stick and strings. The cups were hung upside down and balanced in the beginning. Then, she placed a candle under cup A and observed whether the density of air changed depending on the temperature.

Which of the following options correctly describes the result of the experiment

• Cups A and B moved up and down alternately

• Cup A went up and cup B went down

• Cup B went up and cup A went down

• Cups A and B remained in their original position

Next, Clara moved the candle under cup B and observed for a few seconds. Based on the result, which of the following correctly describes the density of air in cups A and B

• The air in both cups A and B became lighter

• The air in cup A became lighter than in cup B

• The air in cup B became lighter than in cup A

• The density of air was not affected by the temperature

Naomi created a toy house with lights that can be turned on and off using switch (a) made from paper clips. While the light is off, she is now deciding on the material for the sheet that will be placed under switch (a)

Among the four materials, which one is not suitable to be placed under switch (a) ?

• Rubber sheet

• Drawing paper

• Plastic sheet

• Aluminium foil

One afternoon, around 2 PM, 5 students are playing shadow tag on the school playground. When 'it' steps on another student's shadow, that student becomes the new 'it'. Below are their positions on the playground which has a small tree and three brick walls.

If the students do not move from their positions, whose shadow is the most difficult to be stepped on?

• Winter

• Natsuko

• Wendy

• Karina

The following illustrations show simple electric circuits with batteries and light bulb (s) . The example shows a circuit using single battery and a light bulb. Among light bulbs 'a' to 'j', find all the bulbs that have the same brightness as the example

• a and b

• a, b, f, g

• c, d, e

• h, i, j

The moon appear to change shape as its position around the Earth changes. At the same time, the Earth moves around the Sun in its orbit. This result in a total of eight phases in 29 days.

Which of the following options correctly indicates the phases at (i) , (ii), (iii), and (iv)

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David made a fire extinguishers using baking soda, a medicine container, a straw and a plastic bottle. He put baking soda in the medicine container, then hung it inside a bottle filled with vinegar. He closed the bottle tightly using a bottle cap attached with a straw as shown in illustration (2). Finally, he shook the bottle quickly and pointed the straw at the candle flame to extinguish it.

What gas came out of the bottle?

• Oxygen

• Carbon dioxide

• Nitrogen

• Hydrogen