Look at the chart. Which answer choice correctly describes the chart?

• Column A describes metals

• Column A describes nonmetals

• Column B describes metalloids

• Both Column A and Column B describe metals

Tags

NGSS.MS-PS1-2

Which statement describes an element? Select all that apply

• An element is a pure substance

• An element consists of two chemicals combined

• An element is always represented by a capital letter and sometimes includes a lower case letter

Using water displacement, calculate the volume of the ring. You must include your units.

Based on these observations, which sample is most likely a nonmetal?​ (drag the correct answer up here) ​ ​ (a)  

• Sample 1
• Sample 2
• Sample 3
• Sample 4

Tags

NGSS.MS-PS1-2

Match the properties to the correct type of element.

Groups:

(a) Metals

,

(b) Nonmetals

,

(c) Metalloids

• Either Malleable or brittle

• Shiny Luster

• Semiconductor

• Malleable

• Dull

• Conductor of heat and electricity

• Either shiny or dull

• Insulator

• Brittle

Which statement best summarizes the differences between an element and a compound

• An element is two or more compounds, and a compound is two or more elements

• An element is two or more pure substances combined, and a compound is a pure substance.

• An element is made of only one type of atom, and a compound is two or more types of atoms chemically combined

• An element is a mixture, and a compound is a pure substance.

Tags

NGSS.MS-PS1-1

Read the mass shown on the triple beam balance below to the nearest tenth of a gram. You must include g in your answer

(a)   has a mass of 8g and a volume of 4cm³

• Gold
• Mercury
• Lead
• Iron
• Aluminum
• Bone

Tags

NGSS.MS-PS1-2

(a)   has a mass of 25 g and volume of 5 cm³.

​

• Gold
• Mercury
• Lead
• Iron
• Aluminum
• Bone

Tags

NGSS.MS-PS1-2

Students are investigating the density of an unknown object. Students measured the mass using a triple beam balance. Their findings are shown in the picture. They know the object has a volume of 6cm³. What is the unknown object? (a)  

• Iron Density 5.7 g/cm3
• Silver Density 3.5 g/cm3
• Cobalt Density 2.8 g/cm3

Tags

NGSS.MS-PS1-2