Please select a subject first
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Why is it better to avoid the use of plastic products?
Concept: undefined >> undefined
Write proper word from the following group of words in the blank.
(magnetism, 4.5V, 3.0V, gravitational attraction, potential difference, potential, higher, lower, 0V)
Water in the waterfall flows from a higher level to the lower level because of ______.
Concept: undefined >> undefined
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The differences between the electrostatic potential of the positive end the negative end of an electric cell is the ______ of the cell.
Concept: undefined >> undefined
Three electric cells of potential difference 1.5 V each have been connected as a battery. The potential differences of the battery will be ____________ V.
Concept: undefined >> undefined
Electric cells having 2V potential difference each have been connected in the form of a battery. What will be the total potential difference of the battery in both cases?
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The masses of other stars are measured relative to the mass of the ______.
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If you are the sun, write about your properties in your own words.
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Air, water, minerals, soil are ___________ factors of an ecosystem.
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Man is ______ in an ecosystem.
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Match the following
| Producers | Ecosystem |
| a. Cactus | 1. Forest |
| b. Aquatic plants | 2. Creek |
| c. Mangroves | 3. Aquatic |
| d. Pine | 4. Desert |
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Complete the following table.
| Organ system | Organs | Functions |
| 1. Respiratory | ||
| 2. Circulatory system |
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Explain the functional correlation of the circulatory system with respiratory, digestive and excretory system.
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Explain the differences.
External and internal respiration
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Whom should I Pair with?
| Group A | Group B | ||
| a. | Temperature of a healthy human body | i. | 296 K |
| b. | Boiling point of water | ii. | 98.6°F |
| c. | Room temperature | iii. | 0°C |
| d. | Freezing point of water | iv. | 212∘F |
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Who is telling the truth?
Joule is the unit of heat.
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Who is telling the truth?
Objects contract on heating.
Concept: undefined >> undefined
Who is telling the truth?
Atoms of a solid are free.
Concept: undefined >> undefined
Who is telling the truth?
The average kinetic energy of atoms in a hot object is less than the average kinetic energy of atoms in a cold object.
Concept: undefined >> undefined
The apparatus used to measure heat is called a ______.
Concept: undefined >> undefined
