factors that determine the choice of materials for specific objects by Jesús Zárate https://padlet.com/jesus_zarate/a7cudt2xln79 science en-us 2017-10-31 17:38:38 UTC 2023-02-06 16:32:38 UTC hello@padlet.com how do we choose which materials to make into objects? jesus_zarate https://padlet.com/jesus_zarate/a7cudt2xln79/wish/202259928 not all materials have properties which are suitable for making an object. so, when we are choosing materials to make an object, we need to know the:

- properties
- use of the object.

let us look at some examples of common materials, their properties and their uses.

drinking bottle

a drinking bottle must not absorb water or break easily. it must be easy to carry around
the material we use to make the drinking bottle must be:

-hard
-waterproof
-light

as plastic has these properties, it is used to make the drinking bottle.


a bench

a bench must be able to support heavy weights and not bend. the material we use to make the bench must be:

-strong
-rigid

as metals have these properties, it is used to make the bench.]]> 2017-10-31 17:40:34 UTC https://padlet.com/jesus_zarate/a7cudt2xln79/wish/202259928 correct and safe ways to handle materials and household items jesus_zarate https://padlet.com/jesus_zarate/a7cudt2xln79/wish/202269059 materials are also used to make household items such as bleach, pesticide and medicine. although these items are useful, they may also be poisonous. so, to keep everyone safe from harm, we need to handle them correctly. we can do this by:

- labeling them properly

- using them for their intended purpose

- keeping them in suitable places

- disposing used materials properly


Labeling household items properly

to keep everybody safe, it is very important label hazardous and essential household items properly]]> 2017-10-31 17:58:21 UTC https://padlet.com/jesus_zarate/a7cudt2xln79/wish/202269059 using household items for their intended purpose jesus_zarate https://padlet.com/jesus_zarate/a7cudt2xln79/wish/202274390 we should follow the instructions on the label of a household item. This ensures that we are using the household item only for its intended purpose. This also ensures we are using the correct quantity of it. Using the items in the wrong quantity and the wrong purpose can be dangerous. The chemicals in the household item may react with other chemicals to produce poisonous products. Hence, we need to ensure we do not mix or use materials for purposes other than what they are meant for.

when taking medicine, we should follow the instructions on the label. medicine contains chemicals which can be harmful to our health when taken in wrong amounts. this is because taking more medicine than what is necessary may cause poisoning.
this label also tells us what the medicine is for. taking the wrong medicine for our illnesses can worsen our condition. hence, we should not share our medicine with others or take another`s person medicine.

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