Metals & Non Metals
This broad category of elements is typically shiny, malleable, and a good conductor of thermal and electrical energy.
What are metals?
Elements in this group have properties of both metals and nonmetals and act as semiconductors.
What are metalloids?
Density is defined as the amount of mass packed into a given unit of this.
What is volume?
Honey has a density of about 1.42 g/mL. Compared to water 1.0 g/mL, honey will do this.
What is sink (go to the bottom)?
A block of wood has a mass of 20 grams and a volume of 40 cm3. It's density is __________.
What is 0.5 g/cm3?
Unlike metals, solid nonmetals possess this physical property, meaning they break or shatter easily when struck rather than bend.
What is brittle?
Silicon is a crucial metalloid used extensively in computer chips and modern technology because it is a good _________.
What is a semiconductor?
This common liquid is often used as a standard reference point with a density of roughly 1.0 g/mL.
What is water?
Ocean water containing salt is denser than pure fresh water. Because of this, floating in the ocean is ____________ compared to a fresh water pool.
What is easier?
A small metal marble has a mass of 16 grams and a volume of 2 milliliters. It's density is _____________.
What is 8g/mL?
This property describes a metal's ability to be hammered or rolled into thin sheets without breaking.
What is malleable?
Rare Earth elements (like neodymium) are frequently used in modern electronics because many of them share this specific physical property.
What is magnetic (or fluorescent)?
If an object has a density greater than the fluid it is placed into, it will do this.
What is sink?
You create a density column with three layers: Honey (1.42 g/mL), Water (1.0 g/mL), and Oil (0.92 g/mL). An object with a density of 0.95 g/mL will rest between which two layers?
What is between the water and the oil?
A liquid has a density of 1.2 g/mL. If you pour out a volume of 10 milliliters, what is the mass of that liquid?
What is 12 grams?
Copper is widely used for electrical wiring in modern life primarily because it has a high capacity for this.
What is electrical conductivity?
A student finds an element that is dull, breaks easily, and does not conduct electricity well. However, it touches the zig-zag line on the periodic table and has a slight metallic shine. It is likely classified as this.
What is a metalloid?
Vegetable oil has a density of about 0.92 g/mL. When poured into water (1.0 g/mL), it behaves this way.
What is float (stay on top)?
Two blocks are the exact same size (volume), but Block A is twice as heavy (mass) as Block B. When placed in water, Block A sinks while Block B floats. This demonstrates that Block A has a higher ___________ relative to the water.
What is density?
A solid plastic toy has a density of 2 g/cm3 and a mass of 10 grams. It's volume is _______.
What is 5 cm3?
While most metals are solid at room temperature, this unique metal remains a liquid under standard classroom conditions and was historically used in thermometers.
What is mercury?
These highly valued elements, found near the bottom of the periodic table, are crucial for producing strong permanent magnets used in electric vehicles and wind turbines.
What are rare earth elements (or lanthanides)?
If you divide an object's mass by its volume, you are calculating its density. The standard unit used for the density of a solid in 6th-grade science is this.
What is grams per cubic centimeter (g/cm³)?
A solid plastic block has a density of 1.15 g/cm³. It is dropped into a beaker containing a layer of saltwater (1.20 g/mL) on the bottom and fresh water (1.0 g/mL) on top. Describe exactly where the block will rest.
What is suspended right in the middle (floating on top of the saltwater but sinking through the fresh water)?
A golden brick has a density of 19 g/cm3. If its volume is 3 cubic centimeters, its mass is _________.
What is 57 grams?