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Science Review

Mayra Cerruto 21 preguntas

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Preguntas del test (21)

  1. 11. What are atoms?Imagen de la pregunta 1
    1. Atiny particles that make up all matter.
    2. Btiny particles that can only be seen with a microscope.
    3. Ctiny particles that look like gnats.
  2. 2The components of a mixture can be easily separated and each keep their original properties. The proportion of the components is variable
    1. AVerdadero
    2. BFalso
  3. 3
    What types of mixtures do you know?    Imagen de la pregunta 3
    1. AThere are three main categories of mixtures: homogeneous mixtures, heterogeneous mixtures and salty mixtures.
    2. BThere are two main categories of mixtures: homogeneous mixtures and heterogeneous mixtures.
    3. CThere are two main categories of mixtures: pure substances and compounds.
  4. 4Renewable energy sources are all around us. Ex: Solar (from the sun), wind, water, geothermal (from the earth) and [blank_start]biomass[blank_end] (from organic materials).Imagen de la pregunta 4
    1. Abiomass
    2. Borganic
    3. Cwater
  5. 5The type of energy that is found under the earth is called Geothermal energy.Imagen de la pregunta 5
    1. AVerdadero
    2. BFalso
  6. 6What is the difference between a solution and a mixture?
    In chemistry a [blank_start]solution[blank_end] is actually a type of [blank_start]mixture[blank_end]. A solution is a mixture that is the same or uniform throughout. Think of the example of salt water. This is also called a "homogenous mixture." A mixture that is not a solution is not uniform throughout. Think of the example of sand in water. This is also called a "[blank_start]heterogeneous[blank_end] mixture
    1. Amixture
    2. Bsolution
    3. Cheterogeneous
  7. 7How does COVID-19 spread?
    People can catch COVID-19 from others who have the [blank_start]virus[blank_end]. The disease can spread from person to person through small droplets from the nose or mouth which are spread when a person with COVID-19 coughs or exhales. These droplets land on objects and surfaces around the person. Other people then catch COVID-19 by touching these objects or surfaces, then touching their eyes, nose or mouth. People can also catch COVID-19 if they breathe in droplets from a person with COVID-19 who coughs out or exhales droplets. This is why it is important to stay more than 1 meter (3 feet) away from a person who is sick.
    1. Avirus
    2. Bpeople
    3. Csick
  8. 82. What are the symptoms of COVID-19?
    The most common symptoms of COVID-19 are [blank_start]fever[blank_end], tiredness, and dry cough. Some patients may have aches and pains, nasal congestion, runny nose, sore throat or diarrhea.    Imagen de la pregunta 8
    1. Afever
    2. Bhappiness
    3. Ccough
  9. 9I am well and asymptomatic. Should I use a mask?Imagen de la pregunta 9
    1. AVerdadero
    2. BFalso
  10. 10A [blank_start]volcanologist[blank_end] or vulcanologist is a geologist who studies the processes involved in the formation and eruptive activity of volcanoes and their current and historic eruptions, known as volcanology.
    1. Avolcanologist
    2. Bvolcanology
    3. Cvolcano

Información

Descripción
Test sobre Science Review, creado por Mayra Cerruto el 18/06/2020.
Idioma
English
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