Sunday, August 30, 2020

Notes pg 7

 1.  There is no difference in the brightness of the bulbs.

2. The more the number of bulbs arranged in parallel in a circuit, the same is the brightness of the bulb


3. The lights that light up the rooms in our houses.

Notes - Electricity

To calculate electrical energy passing through a bulb, use the following ratio;-

1. For bulbs in series,
Number of Batteries ÷ Number of bulbs

2. For bulbs in parallel,
Number of Batteries

3. For batteries in parallel,
number of batteries = number of batteries present in 1 ‘row’

Thursday, August 27, 2020

Notes - Electricity Calculation - Ba/Bu

 To find out electrical energy passing through a bulb, use the following guide;-

For bulbs in series,

Number of Batteries ÷ Number of bulbs

For bulbs in parallel,

Number of Batteries

For batteries in parallel, 

Number of batteries = number of batteries present in 1 ‘row’

Notes - Electricity p4 -p6

 Pg 4 Activity 1

Common factors

1. Positive and negative terminal of battery must be connected

2. There should not be any gap(s) in the circuit

3. The metal casing and metal tip must be connected to the circuit

4. All parts of the circuit must be made of conductors of electricity 


1. circuit

2. bulb/battery/wire

3. tip/casing

4. negative/positive

5. current

6. closed


Pg 5 

Bulb in B lights brighter than Bulb in A

The more the batteries, the brighter the bulb.
A battery is the source of electrical energy in a circuit so the more the battery, the more the electrical energy is converted to light energy.

The bulb may fuse (filament in the bulb will break/melt)

toys (eg remote control car) and torchlight 


Pg 6

A lights up the brightest and C is the least bright (dimmest)

The more the bulbs arranged in series, the less bright (dimmer) is the bulb

Tuesday, August 18, 2020

P5 - Reproduction in Plants


Question

 https://forms.gle/pcbT2jDgtiwK5WpMA

Responses
https://docs.google.com/spreadsheets/d/11H2GQlf9XFcH8W0R3c8gkkvY4Yfxp0gT5rTOG2IcXIk/edit?usp=sharing

P5 - Plant Transport System

Question

 https://forms.gle/JPy2uHuYGsZwHSXC9

Response
https://docs.google.com/spreadsheets/d/1RJRNj4r34wJYGA1qWoxrHC-xTTQweu0yakvVk7cLMJI/edit?usp=sharing

Notes - Similarities and Differences between Human and Plant Transport System

 Similarities

1. Both use *tubes to transport substances such as water and food

2. Both transport substances around the plant/human


*Blood vessels are tubes 


Differences

Plant

Human

Transport food and water

Transport food, water, oxygen, carbon dioxide

Made up of food and water carrying tubes

Made up of heart, blood and blood vessels

No organ is needed to transport the substances through the tubes

Heart is the organ that pumps blood transporting the substances around the body through blood vessels

Worksheet - Plant Transport System Answer Key

https://docs.google.com/document/d/1Z9y0Wntu3ePNffRRxFcTv82H2NsKENH5SSp3gDUE5bM/edit?usp=sharing

Worksheet - Human Respiratory and Circulatory System Answer Key

https://docs.google.com/document/d/1LFTBv_Afq8j73iEnuEVmxL2jrLdSBdcNmYB0WYdGv-0/edit?usp=sharing

Tuesday, August 11, 2020

P5 Water Cycle

Question
https://forms.gle/iLLiufMuowFYfyH3A


Responses
https://docs.google.com/spreadsheets/d/1c8xbwVrn_DA092hfTcKkSkQCD0nLqSEgo2opEb6Tltc/edit?usp=sharing

Reproduction in Plants - Dispersal

 


Question
https://forms.gle/6oEecDMpHTWfKa2f8


Answer
https://docs.google.com/spreadsheets/d/1bFm4f_7SeO5A08c5zuGNdkA6ptna3clY_ogpjONTJMI/edit?usp=sharing

Circulatory and Respiratory System Notes

 

Digestive System

Respiratory System

Circulatory System

Digest (breaks down) food.

 

Digested food is then absorbed via the small intestine into the bloodstream to be carried to other parts of the body (eg hands, legs, brain, etc)



 

 

 

Provides oxygen to other parts of the body for respiration (releases energy).

 

Removes waste products of respiration such as carbon dioxide and water from other parts of the body

 

 

Transports blood rich in oxygen and digested food TO other parts of the body.

> Blood is transported AWAY from the heart

 

Transports blood poor in oxygen and rich in carbon dioxide FROM other parts of the body.
> Blood is transported TOWARDS the heart

 

 

1.     [C] Our breathing rate increases.

[E/R] Our body parts such as muscles in our hands and legs need more energy. More oxygen and more digested food is needed to be transported to these body parts to produce more energy by respiration.

 After respiration, more waste products such as carbon dioxide and water need to be removed.

 

2.     [C] Our heart rate increases.

[E/R] This cause blood to be pumped faster to carrying more oxygen and more digested food to other parts of our body for respiration to provide more energy.  More carbon dioxide will also be removed faster