Friday, July 31, 2020
Thursday, July 23, 2020
Water Is Life
Water Is Life
Quote of a famous person Thomas Fuller says we never know the worth of water till the well is dry. Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers, and groundwater. Water pollution results when contaminants are introduced into the natural environment. For example, releasing inadequately treated wastewater into natural water bodies can lead to the degradation of aquatic ecosystems. In turn, this can lead to public health problems for people living downstream. They may use the same polluted river water for drinking or bathing or irrigation. Water pollution is the leading worldwide cause of death and disease, e.g. due to water-borne diseases.
Water is typically referred to as polluted .Due to these contaminants it either does not support a human use, such as drinking water, or undergoes a marked shift in its ability to support its biotin communities, such as fish. Water pollution is a major global problem. It requires ongoing evaluation and revision of water resource policy at all levels . It has been suggested that water pollution is the leading worldwide cause of death and diseases.
Sewage from domestic households, factories and commercial building . Sewage that treatment plant is often disposed into the sea. Sewage can be more problematic when people flush chemical and pharmaceutical substance down the toilet.
Quote of a famous person Thomas Fuller says we never know the worth of water till the well is dry. Water pollution is the contamination of water bodies, usually as a result of human activities. Water bodies include for example lakes, rivers, oceans, aquifers, and groundwater. Water pollution results when contaminants are introduced into the natural environment. For example, releasing inadequately treated wastewater into natural water bodies can lead to the degradation of aquatic ecosystems. In turn, this can lead to public health problems for people living downstream. They may use the same polluted river water for drinking or bathing or irrigation. Water pollution is the leading worldwide cause of death and disease, e.g. due to water-borne diseases.
Water is typically referred to as polluted .Due to these contaminants it either does not support a human use, such as drinking water, or undergoes a marked shift in its ability to support its biotin communities, such as fish. Water pollution is a major global problem. It requires ongoing evaluation and revision of water resource policy at all levels . It has been suggested that water pollution is the leading worldwide cause of death and diseases.
Sewage from domestic households, factories and commercial building . Sewage that treatment plant is often disposed into the sea. Sewage can be more problematic when people flush chemical and pharmaceutical substance down the toilet.
Wednesday, July 22, 2020
Business studies
1.Who is in your group for running a business? Sofia, Alesha, Sophie, Subhnesh.
2.How well did you work together in the term building activity? very well. We have the 2nd tallest tower.
Phone Accicted
Yes, i am addicted to my phone. No problem because parent need to control the screen time. And parent don’t need to give children’s own phone.
Tuesday, July 21, 2020
Social Studies
In general, technology has changed the world a long way. it helped us overcome solutions. it improved our daily lives and communities, Along with world conventions there are some that have good uses. like for example online shopping. In conclusion technology has evolved since then but there seems to be consequences with technologies,
Copper Coin Experiment
Methods
-Clean coin in salt-vinegar solution
-Put 50 mL of 2molL-1 Na OH into a beaker
-Heat on bunsen burner until nearly boiling- Stir as heating then take off heat.
-Add a spatula of zinc powder
-Heat lightly for 3 min, with coin in- stir as heating
-Take coin out with tongs
-Rinse coin under water to remove chunks of zinc
-Wave coin in blue flame using tong.
Observation
At the started Copper colour was brown. After we heated it up in 2molL-1 NaOH in a beaker and added zinc powder. We put the copper coin in the zinc hydroxide and stir it of a min. A min after we a take the copper coin outside by using a tong and the copper coin to sliver coin. Rise the sliver coin in water and wave the coin in the blue flame using tong. When the sliver coin heat up it will change to a gold colour.
Copper colour(brown) to Sliver colour to Gold colour.
-Clean coin in salt-vinegar solution
-Put 50 mL of 2molL-1 Na OH into a beaker
-Heat on bunsen burner until nearly boiling- Stir as heating then take off heat.
-Add a spatula of zinc powder
-Heat lightly for 3 min, with coin in- stir as heating
-Take coin out with tongs
-Rinse coin under water to remove chunks of zinc
-Wave coin in blue flame using tong.
Observation
At the started Copper colour was brown. After we heated it up in 2molL-1 NaOH in a beaker and added zinc powder. We put the copper coin in the zinc hydroxide and stir it of a min. A min after we a take the copper coin outside by using a tong and the copper coin to sliver coin. Rise the sliver coin in water and wave the coin in the blue flame using tong. When the sliver coin heat up it will change to a gold colour.
Copper colour(brown) to Sliver colour to Gold colour.
Friday, July 3, 2020
Periodic Table
What are transition metals ?any of the set of metallic elements occupying a central block in the periodic table.
What are Alkali metals ? Shiny, soft, silvery, very dense.
What Noble gases?The noble gases make up a class of chemical elements with similar properties; under standard conditions, they are all odourless, colourless, monotonic gases with very low chemical reactivity.
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