What are five ways to make an observation? Explain that an observation is information we gather about something by using our senses. List the five senses of sight, hearing, taste, touch, and smell. Use their senses to make observations about things in the classroom. What are the direct observation methods? Observations can also be either […]
Is Bangladesh in Pakistan or India?
Is Bangladesh in Pakistan or India? Pakistan and Bangladesh are two separate and independent countries physically divided by India. Historically, this was not always the case: from 1947 to 1971 they were administered under the same government. The two countries share a number of attributes. How are rivers important to the peoples of Pakistan and […]
Why is it possible to use physical properties to separate a mixture?
Why is it possible to use physical properties to separate a mixture? The substances in a mixture are separated by the differences in their physical properties, such as their particle size. The more different the properties are, the easier it is to separate the substances. What are three physical properties used to separate mixtures? Physical […]
What are the harmful effects of photochemical smog?
What are the harmful effects of photochemical smog? Harmful effects of photochemical smog: It corrode metals, stones, rubber and painted surface. It causes serious health problems to senior citizens, children and people with heart and lung problems which lead to emphysema, bronchitis, asthma. What are the negative environmental and health impacts of smog? Smog can […]
What is the angle between the two vectors?
What is the angle between the two vectors? “Angle between two vectors is the shortest angle at which any of the two vectors is rotated about the other vector such that both of the vectors have the same direction.” Furthermore, this discussion focuses on finding the angle between two standard vectors, which means their origin […]
How can you classify mixture?
How can you classify mixture? Mixtures can be classified on the basis of particle size into three different types: solutions, suspensions, and colloids. The components of a mixture retain their own physical properties. These properties can be used to separate the components by filtering, boiling, or other physical processes. Can you still recognize salt from […]
What are the effects of gravity on the movement of objects?
What are the effects of gravity on the movement of objects? Earth’s gravity affects the motion of all the objects we see in daily life by accelerating them toward the center of the earth. Therefore, to efficiently process object motion the human visual system needs to consider gravity. How is gravity related to mass? Since […]
How can we protect our rivers?
How can we protect our rivers? Always segregate your household garbage into biodegradable and non-biodegradable waste. Volunteer with NGOs and community groups that are working to save and protect our rivers from pollution. In this way, you will be able to learn more and can easily volunteer for the projects that are dedicated to restoring […]
What is the best example of biological contamination food handlers?
What is the best example of biological contamination food handlers? a.a wedding ring that falls off of a food worker’s finger and into the salad dish. b.a can of pesticide is sprayed over the food prep area currently in-use. How do you kill pathogenic bacteria in food? Instead, rapidly reheat to 74°C (165°F) (and hold […]
Which location has the greatest number of hours of daylight?
Which location has the greatest number of hours of daylight? According to records from weather stations across the US, Yuma in Arizona is the sunniest place in the world. During daylight hours, which range from 11 hours in winter to 13 in summer, it has a 90% possibility of sunshine. What angle does the sun […]