It is possible to estimate the quantities of a substance that we need - for example heaped teaspoons. Another common way of estimating is using a fraction of a standard quantity, for example a quarter teaspoon of salt, or half a brick of butter.
Measuring temperature
Temperature is involved in many aspects of our daily lives, including our own bodies and health; the weather and how warmly we must dress; and how hot the stove or oven must be in order to cook food.
Temperature can be negative or positive. The higher the positive temperature, the hotter it is. The lower the negative temperature, the colder it is.
Temperature is measured in degrees Celsius (°C). Water freezes and becomes ice at 0°C and at sea level, it boils at 100°C. A normal temperature for a healthy person is between
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• 60 seconds = 1 minute
• 60 minutes= 1 hour
• 24 hours = 1 day
• 7 days = 1 week
• 365 days = approximately 52 weeks = 12 months = 1 year
2.1.2 Read scales on the measuring instruments
When reading an instrument, there are three parts that must be reported. The first is the reading itself, called the nominal value of the measurement. The second is the units of the measurement. The third part is to estimate the uncertainty of the reading, due to the resolution of the device. We will refer to this uncertainty as the reading error or resolution error.
The nominal value is the number read directly off the instrument’s display:
For the display of the first figure, we would record 0.30 g.
For the thermometer reading, we see that the reading appears to be 20.2oC
With analogue displays, extra care must be taken to ensure an accurate reading. Because the indicator (the mercury) is behind the scale (the lines on the glass), you must read the instrument with your eye normal to the instrument’s display. Otherwise you risk misreading the instrument, as demonstrated in the figure below. This error is called Parallax
The temperature probe was kept in the calorimeter until the temperature had been stabilized and was calibrated. A beaker was placed on a hot plate with dial turned between three and four. Another 100.00 ml of deionized water was added while the beaker is heating up. Using the temperature probe, the beaker was measured
When atoms are cold they sink because they are more compacted and don’t move around as much. Sink or Float was a lab that showed about temperature and density changes. With the cold water we saw it sink and just stay at the bottom of the container without moving. When the hot water was added it made it rise to the top of the container and spread. That showed us that the bottom layers would be hotter and the top layers would be colder.
The liquid contained inside has no choice but to move upward and downward as the temperature creates the substances to grow or shrink. 6. Thermometers have a large bulb and a narrow tube to accentuate the change in volume. 1.
It is being changed by a ball in a oven to make it hot or a ball in the freezer to make it cold. Temperature can be measured by
After World War 1, American society was rife with both conflict and opposing ideals. By this same token, traditional Americans had still stubbornly clung to their old puritanical traditions and small town life as manifested in the K.K.K. However, a new generation of Americans had reacted to the Great War with new political doctrines, debatable views of religion, and emerging social and artistic movements. New Heightened tensions had demonstrated how this new generation of Americans had reacted to the Great War. Disputes over religion, politics, and the arts had highlighted the division between modern and traditional Americans.
The fourth finding I found was that even though Pre-K environments have an emphasis on group activities there was often a designated area in the classroom where children could go and be alone and self-reflect. However, these spaces were used differently throughout the three programs. In one program children went to what they called the “cool down chair” when they misbehaved. In this particular program usually a talkative child who may have been disruptive would have to go to the chair and think about what he or she did wrong. The chair was located in a corner where there were crayons and other play items that the child was allowed to use, but mainly it was a sort of punishment.
The Black Balloon, directed by Elissa Down (2008), is a film that explores the everyday life situations, that the Mollison family encounter, due to Charlie’s Autism. The audience experiences these struggles through the protagonist, Thomas, as he attempts to gain the approval of his new school peers, while simultaneously fighting against his personal acceptance of who his brother is. Jackie, a secondary protagonist, who plays a crucial part in Thomas’s character development, rebels against such stereotypical attitudes that teenagers seek acceptance by those around them. Through the utilisation of film language throughout TBB, acceptance and hypocrisy are attitudes which are promoted, though also challenged through Jackie’s character.
A boiling point of a substance is dependent on the temperature at which the substance can change its matter, such as liquid to gas. The molecules present in liquid are tightly compressed together, though they are still moving and colliding. If the liquid is heated, there is a rise in temperature which generates vibrations throughout the liquid, resulting in more collisions between molecules (Helmenstine, 2017). Once the collisions between the molecules become quite intense and rapid, boiling starts to take place. There are molecules that are so powerful, they break through the attraction forces that keep the molecules together, this is called intermolecular forces (Ophardt, 2013).
Rigel was asked if he wanted to participate in a touching activity. He had answered yes. The teacher had Rigel to sit next to the blue tray. She then took out a container with pink starburst flubber. The teacher had Rigel take the flubber out of the container and had him place the flubber onto his tray.
Materials: The materials that I will be utilizing during these experimentations are three to four ice cubes, one cup for measuring, six unblemished cups, one stopwatch, one hot water source, three tablets of Alka-Seltzer, one thermometer that measures from negative
Over the past few months, the class has been discussing typical and atypical language development and the assessment and intervention of children with language delay or disorder. In line with this, the students were asked to observe children aged 0-12 years old with language problems for 2 hours. For this requirement, I went to a therapy center situated in Quezon City last November 16, from ten (10) A.M. to twelve (12) N.N. The center has multiple rooms that are used for speech therapy and occupational therapy. During my observation, two speech pathologists and two children with language disorder were sharing one speech therapy room.
In Joseph Wright’s “An Experiment on a Bird in the Air Pump”, it shows how the Scientist’s audience all have mixed reactions to the experiment on the bird. Today when Gay Marriage was legalized, people across the United States each had a different reaction just like the audience in the painting did. Some people were excited because it was a huge step towards equality for all, some people in religion groups were not happy because they saw marriage as only between a man and a woman and it went against their beliefs, and some were completely indifferent. In Wright’s painting his audiences reactions were similar to those of the citizens in the U.S. this year when gay marriage was legalized by the Supreme Court. The audience in Wright’s painting
Measurements, Calculations, and Significant Figures Measurements, calculations, and significant figures are vital mathematical terms used to understand the basic concepts of physics. Knowing how to properly make measurements and apply the necessary calculations to obtain accurate answers will surely prove beneficial in physics, but having that knowledge will also help you throughout your entire life. Therefore, it is important to understand the processes and numbers involved when using measurements, calculations, and significant figures. Measurements are used to identify the specific characteristics of an object, such as length, size, and amount. One must use the proper measuring device, depending on the conditions of the experiment and
I. Introduction This experiment uses calorimetry to measure the specific heat of a metal. Calorimetry is used to observe and measure heat flow between two substances. The heat flow is measured as it travels from a higher temperature to a lower one. Specific heat is an amount of heat required to raise the temperature of one gram of anything one degree Celsius. Specific heat is calculated using several equations using the base equation: q=mc∆T II.
Calorimeter helped many generations to measure the quantity of heat using different types of devices; also they followed a specific procedure and equations to find out quantitative