energy in food - sap education...(1) plants obtain their energy from the sun directly. (2) the...

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P5/6 science

Energy In Food

SAPSCSP5&6_W45/6

Taken from Nail thoSe McQs! PriMary ScieNce UPPer Block 5/6

1. The experiment shown below uses three similar pots of plants with same number of leaves. Thesame amount of water is given to all three pots. For both set-ups X and Y, the voltage used for thelamps is the same.

yellow light purple light

wooden box

Set-up X Set-up Y Set-up Z

Based on the above set-ups, X, Y and Z, which possible hypothesis can be made?A. The presence of light affects the rate of photosynthesis.B. The presence of water affects the rate of photosynthesis.C. The colour of light affects the rate of photosynthesis.(1) A only (3) A and C only(2) A and B only (4) A, B and C ( )

2. Which one of the following statements is incorrect about the sun?(1) Plants obtain their energy from the sun directly.(2) The energy from the sun is passed to the animals when they consume the plants.(3) The sun is the food provider for plants.(4) The sun is the main source of both heat and light energy. ( )

3. Study the diagram below. starch

carbon dioxide

oxygen

water

photosynthesis(plants)

respiration(animals)

Which of the statements explains the diagram correctly?(1) When animals respire, they give out carbon dioxide and sugar.(2) Carbon dioxide is given out by both plants and animals.(3) Animals obtain starch from the plants.(4) Both animals and plants need water to survive. ( )

Answers: 1. 3 2. 3 3. 3


P5/6 science

Energy In Food

SAPSCSP5&6_W45/6


1. The arrows below show the movement of different gases taken in and given out by a leaf from aplant which is put into an enclosed metal box for a few hours.

A

Bpart of a plant

Cmetal box

Which one of the following correctly show the gases indicated by the letters, A, B and C, during that few hours?

A B C

(1) carbon dioxide water vapour oxygen

(2) carbon dioxide oxygen water vapour

(3) oxygen water vapour carbon dioxide

(4) oxygen carbon dioxide water vapour( )

2. Which food chain below shows the most amount of energy to man?(1) plants → cow → man(2) plants → snail → duck → man(3) plants → man(4) plants → turkey → man ( )

3. A whole plant was placed under a shelter away from sunlight for three days. A test was done andit was shown that there was no presence of starch. One of the leaves was wrapped with pieces oftracing paper and the whole plant was then placed under direct sunlight for a few hours as shownin the diagram below.

1 piece of tracing paper

3 pieces of tracing paper

What could be the possible aim for the above experiment?(1) To find out whether the hardness of the tracing papers affects the rate of photosynthesis(2) To find out whether the number of tracing papers affects the rate of photosynthesis(3) To find out whether the number of tracing papers affects the rate of respiration(4) To find out whether tracing papers affect the rate of transpiration ( )


P5/6 science

Energy In Food

SAPSCSP5&6_W45/6


4. Study the food chain below.

S T U V

Which of the following statements about the above food chain is/are correct?

A. T depends on S directly for food.B. V gets its energy directly from both U and T.C. U gets its energy by feeding on T.D. The sun is the main source of energy for S, T, U and V.

(1) A only(2) A and B only(3) B and C only(4) A, C and D only ( )

Answers: 1. 1 2. 3 3. 2 4. 4


P5/6 science

Energy In Food

SAPSCSP5&6_W45/6


1. Five bell jars, each containing a similar plant with the same number of leaves, are set up. They areeach given a different set of conditions as shown in the table below.

Set-ups

Conditions 1 2 3 4 5

Presence of carbon dioxide Yes Yes Yes Yes Yes

Presence of oxygen Yes Yes Yes No No

Presence of sunlight Yes No No Yes No

50 ml of water Yes Yes Yes No No

5 ml of fertilizer No Yes No Yes Yes

Which pair of set-ups is appropriate to show that sunlight is needed for photosynthesis?(1) Set-ups 1 and 2(2) Set-ups 1 and 3(3) Set-ups 2 and 5(4) Set-ups 4 and 5 ( )

2. Which of the following is matched wrongly?

Storage part Plant

(1) roots sweet potato

(2) stem ginger

(3) roots yam

(4) stem carrot ( )

3. Which of the following statements is/are correct?A. Energy from the sun is transferred to the plants during photosynthesis.B. The sun is the main provider of food for all living organisms.C. Plants need sunlight, water and oxygen in order to make food.D. All living things depend on plants directly and indirectly for food.

(1) A only(2) A and D only(3) B and C only(4) A, C and D only ( )

Answers: 1. 2 2. 4 3. 2


P5/6 science

Types Of Forces

SAPSCSP5&6_W45/6


1. Which of the following objects has/have gravitational force acting on it/ them?A. a man sleeping on his bedB. a bird perching on the treeC. a rocket taking off from the stationD. a remote controlled plane operating in the sky

(1) A only(2) C only(3) A, B and C only(4) A, B, C and D ( )

2. Weston uses four cubes of similar size in his experiment as shown below. Each cube is made from adifferent material.

Cube S Cube U

Cube V

Cube T

If the readings on all the spring balances are the same, which cube has the lightest mass?(1) Cube S(2) Cube T(3) Cube U(4) Cube V ( )

3. An experiment is set up as shown below. With every two metal cubes added to the set-up, theextension of the metal spring is recorded.

metal rod

metal spring of original length 5 cm attached to both rod and base

metal base

metal cube


P5/6 science

Types Of Forces

The results are plotted in a line graph below.

0

0.5

1

1.5

2

2.5

3

3.5

2 4 6 8Number of metal cubes

Extension of spring (cm)

Based on the graph above, what will the total length of the spring be if 10 metal cubes are used in the experiment?(1) 3.75 cm (3) 8.75 cm(2) 6.25 cm (4) 12.5 cm ( )

4. A wind-up toy car was wound up a few times before being released at the starting line at Point R asshown below.

R

Point S

It moved up to Point S, stopped and then started to roll backwards. What type(s) of force caused the toy car to roll backwards?A. gravitational forceB. magnetic forceC. elastic spring forceD. frictional force

(1) A only (3) A and B only(2) C only (4) A, C and D only ( )

Answers: 1. 4 2. 4 3. 3 4. 1

SAPSCSP5&6_W45/6


energy in food - sap education...(1) plants obtain their energy from the sun directly. (2) the...

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