Pencil graphite is considered non-toxic and generally harmless if ingested in small amounts. However, consuming large quantities of pencil graphite could potentially cause discomfort in the digestive tract. It is always best to avoid ingesting any non-food items.

A standard wooden pencil is typically around 7 inches (17.78 cm) long. The diameter of a pencil can vary, but it is usually around 0.25 inches (0.64 cm).

A regular wooden pencil can take up to 30 years to decompose in a landfill due to the slow degradation of wood and graphite. However, in an ideal composting environment, it can break down faster within a few months to a year.

The main body of the pencil is made from soft wood which is naturally boyant, the pencil 'lead' is not lead at all but a much lighter substance called graphite. Your pencil is just not heavy enough to sink.

A small metal piece called a ferrule holds the eraser in place on a pencil. The ferrule is typically crimped onto the end of the pencil barrel, securing the eraser in position.

When a pencil is placed in water, the light rays passing from air to water bend due to the change in medium. This bending of light rays causes the pencil to appear bent when viewed through the water-air interface. This is a phenomenon known as refraction.

The density of a pencil can vary depending on the material it is made of. For example, a wooden pencil typically has a density of around 0.6 grams per cubic centimeter, while a mechanical pencil made of metal may have a higher density of around 7.8 grams per cubic centimeter.

Lead pencils are called so because they were originally made using a rod of solid graphite, which was mistaken for lead when graphite was first discovered. The name "lead pencil" has persisted over time even though modern pencils are made with a graphite core.

The modern pencil as we know it today originated in the 16th century when a deposit of graphite was discovered in Cumberland, England. The graphite was first used to mark sheep, and then enclosed in wood to create the first pencils. Over time, the design was further developed and refined into the pencils we use today.

The width of a standard pencil is typically around 7 millimeters.

I don't have the capability to send images or documents. However, you can easily find a pencil lead hardness chart by doing a quick search online. These charts typically show the different levels of hardness, from soft (e.g., 6B) to hard (e.g., 6H), and provide information on the shading and writing characteristics of each type of lead.

A pencil consists of a thin stick of pigment (usually graphite, but can also be coloured pigment or charcoal) and clay, usually encased in a thin wood cylinder, though paper and plastic sheaths are also used.

(Lead) from a pencil is actually graphite which is 100% carbon

Graphite and carbon black, all elementary Carbon (C)

A regular pencil is considered an instrument, a mechanical pencil may be considered a simple machine , in that it has moving parts that rotate, and move up and down.

Try soaking the tip of the pen in warm water for a few minutes to soften any dried ink. You can also gently tap or shake the pen to help distribute the ink inside. If these methods don't work, consider replacing the refill or cartridge.

The first pencils were made in the late 16th century, with the earliest version using graphite sticks inserted into wooden holders. However, it wasn't until the Industrial Revolution that mass production of pencils began, making them more accessible to the general public.

Laszlo Biro, a Hungarian-Argentinian inventor, is credited with inventing the modern ballpoint pen in the 1930s. His design replaced the fountain pen with a ball that rotated at the tip to control the flow of ink, creating a smoother writing instrument.

A standard pencil is typically about 7 millimeters in diameter, which is roughly 0.28 inches.

A HB 2 pencil is a standard writing instrument that has a medium level of hardness. It is commonly used for everyday writing tasks, drawing, and test-taking due to its versatility in creating both light and dark marks on paper.

You can remove pencil lead from the skin by gently scrubbing the affected area with mild soap and warm water. If the lead does not come off easily, you can use a gentle exfoliating scrub or a paste made of baking soda and water. Avoid harsh scrubbing or using abrasive materials that could damage the skin.

The mass of a standard wooden pencil is typically around 5 grams.

On average, a wooden pencil weighs around 5-7 grams.

Pencils are typically made of graphite mixed with clay, which is encased in a wooden casing. The graphite-clay mixture determines the pencil's hardness or softness, while the wood casing provides structure and support for the lead. Additionally, pencils may have an eraser at one end made of rubber or synthetic materials.

A standard pencil's mass is 5.438mg.

The modern pencil as we know it today was invented by Nicholas-Jacques Conte in 1795. He replaced the traditional graphite and hollowed wood pencil with a mixture of graphite and clay that could be baked to create a uniform writing implement.

A pen is a writing instrument that typically consists of a thin tube filled with ink that is dispensed onto paper or other writing surfaces. It is commonly used for writing, drawing, or signing documents. Pens come in various types such as ballpoint, fountain, gel, and rollerball pens.