Scientific method

Scientific method has the following steps:

There are two coordination systems in humans The nervous system 2. The endocrine system

What are ions? How are ions formed? Positive ions – cations Negative ions – anions

Blood and its components Red blood cells White blood cells Platelets Plasma

Using Resources: Life cycle assessment & Recycling Ways of reducing the use of resources Advantages of Recycling

What are isotopes? Atoms of the same element having same number of protons but different number of neutrons Refer to the images for complete notes

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