4M-Exercise

1. Table below shows the result of the investigation. The time taken to send mail from Kuala Lumpur to Kota Kinabalu by four different methods.

(a) Which method of sending mail takes the shortest time?

(b) Predict the method that u mentioned in (a).

(c) State the following belows:

i) What is changed :

ii) What is measured :

(d) State the aim of the investigation above?

2. Diagran above show two nails in a beaker placed in wet area.

(a) Which nail is going to rust?

(b) Give a reason (inference) for your answer in (a).

(c) In this investigation, state what should be kept the same.

(d) Suggest two methods that can be used to prevent rusting.

i.

ii.

3. Four materials J, K, L and M, of the same size are immersed in separate beakers, each containing 100 ml of water for 10 minutes. The table below shows the final amount of water each materials is taken out from beaker.

(a) What is the purpose (aim) of the investigation?

( b) Which materials is the most absorbent object?

(c) Give a reason (inference) for yopur answer in (b)

(d) Predict the materials that can be used to make these objects.

4. Diagram below shows three objects used to compared the size of the Sun, the Earth and the Moon ia a simulation.


(a) What do the objects represent?

i. The glass marble :

ii. The basketball :

iii. The grain of sago :


(b) What is the relative size of the moon to the size of the Earth and the size of the Sun?



(c) All the planets moves around the Sun in thier own orbit. State the relationship between the size of orbit of the planet and the time taken for the planet to complete the movement around the Sun.

5M-Exercise

1. Diagram above shows the apparatus used by 5M pupils in an investigation. All the cylinders are placed on the cardboard.The cardboard lift up slowly. The time taken for each cylinder to fall down are recorded.

(a) What is the aim of the investigation above?


(b) In this investigation, state the following below:

i) What is changed :

ii) What is onserved :

(c) Give a reason (Inference) to explain your observation in this investigation.


(d) State the relationship between size of the base area and the stability of the structure.


(e) In this investigation, state two variables that should be kept the same.


(f) State another factor can effect onto the stability of structure.

Milk Carton Bird Feeder

Here's how to recycle a milk carton or juice carton to make an excellent bird feeder for finches, sparrows, chickadees and other small feathered visitors to backyard bird feeders.

This design protects the bird seed from rain and snow, which is very useful in the winter months when many bird feed platforms become snow covered and unusable. Don't forget, however, that feeding the birds is a year-long committment; during the nesting season in spring and summer, the nutritional needs of many birds increases tremendously as they work to build nests and feed their young.

To make a Milk Carton Bird Feeder, you will need:

• milk or juice carton
• craft knife or scissors
• wax pencil or crayon
• ruler or straight edge
• two small lengths of double-sided tape
• two bamboo skewers or straight, small diameter twigs to use as perchs
• bird seed
• hole punch
• twine to make a hanger

Milk Carton Bird Feeder
Instructions:

1. Use the wax pencil and ruler to draw the shape of the opening on the front of the milk carton, as shown in the diagram at right. The opening looks like the outline of a house with a peaked roof. You should allow about two inches at the bottom of the carton to hold a good amount of seeds.

2. Use the craft knife to cut out the opening. Younger children will need an adult to help with this part.

3. Using the top of the peak as a center point, fold the piece of milk carton that you just removed in half along its length. Make a half inch cut from the point of the peak down the center fold. Fold up a half inch flap on either side of this cut, as shown in the diagram at right.

4. Attach a length of double-sided tape to each flap.

5. Insert this roof piece into the top of the opening and use your fingers to press the flaps against the inside of the milk carton until the double-sided tape holds securely.

6. Poke a bamboo skewer or thin straight twig through the wall of the milk carton, just below the left side of the opening. Repeat on the right side. Poke skewers all the way through and out the back wall of the carton. This keeps the perches straight and secure.

7. Use a hole punch or a skewer to punch two holes through the top line of the carton.

8. Thread twine through the two holes to make a hanger.

9. Fill the bottom of the feeder with nyger seed or a small bird seed mixture. Hang your milk carton bird feeder from a tree branch that you can reach easily when you need to add more bird seed.

Suggestions:

If you plan to do a lot of bird watching, hang the feeder in a spot that you can see clearly from a window. If the bird feeder is some distance away, use binoculars or a spy glass to see the birds up close.

Buy a good bird identification book and keep a record of all the species that turn up at your backyard feeding station. Record the date that you saw each bird, whether it was a male or female, or a pair of a birds. You may also want to add other observations about their size, appearance, special markings and behaviour.

Research the birds that you see to find out what types of foods they prefer, or experiment by offering different types of bird seed in your bird feeder to find out for yourself.

4M - Examples Of Objects

a) Gives 3 examples of objects for each shapes below:

1. Cone

a) ____________________

b) ____________________

c) ____________________

2. Cube

a) ____________________

b) ____________________

c) ____________________

3. Cuboid

a) ____________________

b) ____________________

c) ____________________

4. Cylinder

a) ____________________

b) ____________________

c) ____________________


5. Sphere

a) ____________________

b) ____________________

c) ____________________

6. Hemisphere

a) ____________________

b) ____________________

c) ____________________

7. Pyramid

a) ____________________

b) ____________________

c) ____________________

8. Prisme

a) ____________________

b) ____________________

c) ____________________


b) The pictures below shows example of structures. Identify and label the shapes that you can found in the pictures below:

i)








ii)

The Shapes Of Objects

1. Cube










2. Cuboid



3. Cone











4. Cylinder










5. Sphere













6. Pyramid










7. Prisme

The Movements Of The Earth and The Moon

The Movements Of The Earth

1. The Earth moves around the Sun in their own path.
2. The path is called the orbit.
3. Each planets have their own orbit. The bigger the size of the orbit is, the longer the time taken takes by planet to complete one revolution moves around the sun.
4. The Earth takes around 365 days to complete one revolution moves around the sun.




The Movement Of The Moon

1. The Moon moves around the Earth in their own path.
2. The path is called the orbit.
3. The Moon takes around 27 days to complete one revolution moves around the Earth.
4. The movement of the Moon can cause the phases of the moon.
5. The phases of the moon shown in diagram below.

Rotation Of The Earth

Note :-
1. Earth rotates its own axis from west to east.



2. The Earth takes 24 hours to complete one rotation.
3. The rotation of the Earth can cause:-
a) The changing the direction and length of the shadow.


b) The occurrence of the day and night