Science Year 4

• State that human use nose, trachea and lungs to breathe through observations using various media
• Sketch the passage of air during inhalation and exhalation
• Describe chest movement by placing hand on chest during inhalation and exhalation
• Make generalisation that rate of breathing depends on types of activities carried out by observing the chest movement
• Explain observations using sketches, ICT, writing or verbally

• State the meaning of excretion through observations using various media
• Identify excretory organs and its products :  kidneys excrete urine  skin excretes sweat  lungs excrete carbon dioxide and water vapour
• State the meaning of defecation and its product through observation using various media
• Explain with examples that human needs to excrete and defecate
• Explain observations using sketches, ICT, writing or verbally

• State that human sensory organs respond to stimuli by carrying out activities
• Explain with examples humans’ responses to stimuli in everyday life
• Make inferences on the importance of humans’ responses to stimuli
• Explain observations using sketches, ICT, writing or verbally

• State that offspring inherit parents’ features such as skin colour, type of hair and looks by carrying out activities
• Explain with examples the features of offspring that are inherited from their generation
• Explain observations using sketches, ICT, writing or verbally

• Explain with examples, habits that bring harm to human life processes such as:  eating imbalanced food  smoking  glue sniffing  drugs abusing  consuming alcoholic beverages
• Explain effects of habits that bring harm to human life processes such as:  health  growth  slow down responses to stimuli
• Explain observations using sketches, ICT, writing or verbally

• Practise healthy lifestyle in everyday life