Explanation

• The Earth rotates constantly from West to East.
• Which is why the Sun appears to rise in the East and set in the West.
• This rotation is also the reason why we experience day and night in a 24-hour cycle.

Explanation

• Sounds travel faster through solids than through both gases and liquids.
• Solids have a more rigid structure, allowing sound waves to propagate more efficiently and at a faster speed.

Here's a comparison of sound speeds in different materials:

• Solids (e.g., steel): up to 5,960 m/s (13,140 ft/s)
• Liquids (e.g., water): up to 1,482 m/s (4,862 ft/s)
• Gases (e.g., air): approximately 343 m/s (1,125 ft/s)

Explanation

• The temperature range of the clinical thermometer is 94°F to 108°F.
• A clinical thermometer is a device that measures the temperature of the body.
• A mercury bulb is located at the end of a long, narrow glass tube.
• The average body temperature is 37° C, but it can range between 35 and 42° C.

Explanation

• James Prescott Joule established that the various forms of energy, mechanical, electrical and heat, are basically the same and can be changed from one form into another.
• He demonstrated that different forms of energy are interchangeable in his most famous experiment, published in 1845, using a paddle wheel to show that mechanical energy could be changed into thermal energy.

Explanation

• Temperature is the measurement of the hotness or coldness of an object or substance.
• It is a physical property that is usually measured in units of Celsius (°C), Fahrenheit (°F), or Kelvin (K).

Explanation

• A gas is a state of matter that has neither a fixed shape nor a fixed volume.
• It expands to fill its container and takes the shape of its container.
• Gases are highly compressible and can change shape and volume easily.
• Liquid: A liquid has a fixed volume but not a fixed shape.
• Solid: A solid has both a fixed shape and a fixed volume.

Explanation

• Matter is anything that occupies space and has mass.
• It can take many forms, including solids, liquids, gases, and plasma.
• Matter is the physical substance that makes up all objects, living and non-living.

Explanation

• A storeroom is a room or area used for storing goods, supplies, or equipment, and is not a type of environment.
• Environments are typically categorized as natural or human-made and include ecosystems, habitats, and physical surroundings that support life.

Explanation

• Wind produces kinetic energy, which is the energy of motion.
• This kinetic energy is used to rotate the blades of a fan or turbine in a wind energy system.
• It converting the wind's kinetic energy into mechanical energy, and ultimately into electrical energy.

Explanation

• Cone cells are responsible for vision in bright light and color vision.
• There are three types of cone cells, each sensitive to different parts of the visual spectrum, which allows us to see a range of colors.