Q.5 A
Describe how to make the following tool from the things or objects found around you. (3)
Q.5 B
Describe how to make turmeric paper from the objects found around you.
Answers
Answer:
When acids are put on it, it turns yellow and when bases are put on it, it turns red. You can make a turmeric paper by applying turmeric paste on a paper and then drying it. You can prepare turmeric paste by adding just a little water in the turmeric Powder
Answer:
A tool is an object used to extend the ability of an individual to modify features of the surrounding environment. Although many animals use simple tools, only human beings, whose use of stone tools dates back hundreds of millennia, have been observed using tools to make other tools. The set of tools required to perform different tasks that are part of the same activity is called gear or equipment.
Display of agricultural tools
A modern toolbox
While one may apply the term tool loosely to many things that are means to an end (e.g., a fork), strictly speaking an object is a tool only if, besides being constructed to be held, it is also made of a material that allows its user to apply to it various degrees of force. If repeated use wears part of the tool down (like a knife blade), it may be possible to restore it; if it wears the tool out or breaks it, the tool must be replaced. Thus tool falls under the taxonomic category implement, and is on the same taxonomic rank as instrument, utensil, device, or ware.
2.Turmeric :Natural Indicator
Take a tablespoonful of turmeric powder. Add a little water and make a paste.
Make turmeric paper by depositing turmeric paste on blotting paper/filter paper and drying it. Cut thin strips of the yellow paper obtained.
Put a drop of soap solution on the strip of turmeric paper.