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Grade 4 English Week 1 – How the Hand Grenade Works

The pineapple hand grenade is a very common type of hand grenade in the military as it is easy to use and make, but at the same time lethal. It is time delayed by about one second and to inflict maximum damage. The shell is divided into square sections by links...

Grade 4 Science Week 1 – Insects

Definition: An insect is a arthropod which includes spiders, scorpions, crustaceans etc. However, not all arthropods are insects. Body Structure: Insects have a specific body structure. An insect’s main body is made of three parts: the head, thorax and abdomen. They...