Homemade Lava Lamp Essay Example | Topics and Well Written Essays - 500 words

Homemade Lava Lamp - Essay Example Subsequently add 10 or more droplets of the selected food colouring to the mixture in the bottle until a rich colour is seen. In understanding how the lava lamp works, the first step would be to understand that oil and water do not mix. They are insoluble. The main goal in the liquids used in the lava lamp is to obtain two liquids that have very close densities but are insoluble in each other and that is why oil and water are most preferable (Cothron et.al 4). Oil and water will not mix in the experiment as water is made up of highly charged compounds while oil is made up of long carbon chains that have no charge. As a result, the water molecules are not attracted to the oil molecules hence rendering the two liquids immiscible. The immiscibility of the two liquids causes the separation that will be seen in the experiment just as observed in our everyday life such as the kitchen sinks and oil spills. Further, the oil being less dense than water will float on top of the water as will be exemplified in the experiment. The baking soda used in the experiment contains sodium bicarbonate. Baking soda is technical ly both basic and acidic. When the baking soda is mixed with water, a chemical reaction is formed that releases carbon dioxide gas (Heuer, 10). Carbon dioxide gas is produced in a bubbling manner which is seen in the coloured fluid that is in the bottle. Food colouring is used to merely add colour to the experiment. When added, the food colouring falls through the oil and mixes with the water at the bottom giving it the particular colour of choice that is to illuminate at the onset of the chemical reactions in the

How does her book challenge medieval ideas about women Essay

How does her book challenge medieval ideas about women - Essay Example The city in her book symbolizes the women whom she had to build its reputation and prove how men have falsely thought them to be. Furthermore, in order to make women to be well-represented, Christine utilized symbolisms in her book to in order to present her thoughts accordingly. In her book, where she is the main character herself, three women told her and guided her through the building of a City. This City basically represents the state of liberation for women, who were thought to be misjudged and looked down to during the medieval period. It is in this City she was to build where women will find refuge against the men who attacks their womanhood through various writings and literature, and who sees themselves to be the ones with accomplishments and greatness alone. The three allegorical women whom the author talks to in the book – Reason, Justice and Rectitude, she was able to establish the greatness of women. Through the help of these ladies, Christine was able to identify her role as a woman in the society. According to the wisest of the ladies, it is only when a person has full knowledge of the self would one be able to understand oneself and the nobility of that individual. Thus, it is the Ladies’ role to help her see and understand a woman’s worth in the society. By understanding women’s roles in the society, Christine therefore builds the City’s foundation. It is only when woman clearly realized how special their tasks are in the community, then they would eventually be able to build a strong wall that would guard their city against any forms of attack. Women who assumed a great role in the military as well as in politics have proven their strength, not just in the physical aspect, but their psychological competence in order to defend their areas of responsibility. From the women who have found the Amazon to the queens who used their power and wisdom to rule over their kingdoms, it cannot be denied