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Answer: Diamond
Diamond is the hardest known natural material on Earth, making it highly resistant to scratching and abrasion.
Answer: Potential energy
Potential energy is stored energy that an object has because of its position or condition, such as an object held above the ground.
Answer: Cell
The cell is the smallest unit of life and serves as the basic building block for all living organisms.
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Answer: Definite volume
Liquids have a definite volume but no definite shape, adapting to the container they are in.
Answer: Transport oxygen
Red blood cells are responsible for transporting oxygen from the lungs to the rest of the body and bringing carbon dioxide back to the lungs.
Answer: All of the above
All of these are examples of adaptations, traits that increase an organisms chances of survival and reproduction in its environment.
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Answer: Mammal
Dolphins are mammals, characterized by live births, warm-bloodedness and the presence of lungs for breathing air.
Answer: 100?C
Water boils at 100?C at standard atmospheric pressure.
Answer: He
Helium has the chemical symbol He and is a noble gas commonly used in balloons and as a cooling agent.
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Answer: Plant cell
Plant cells have a cell wall, which provides structure and support, while animal cells lack a cell wall.
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