Jumpstart Test - Part 2

Which best describes an element?

• It is the simplest form of matter

• It can be changed into a compound

• It can be broken down into simpler mixtures

• It is composed of more that one type of matter

The table shows several minerals on Earth’s crust. Based on the information in the table, which of the following best classifies graphite?

• mixture

• compound

• element

• alloy

Tags

NGSS.MS-PS1-1

Which subatomic particles determine the weight of an atom?

• Proton

• Electron

• Electrons and Neutrons

• Protons and Neutrons

Hydrogen peroxide (H₂O₂) and water (H₂O) both contain hydrogen atoms and oxygen atoms. Why are they different compounds?

• Hydrogen peroxide contains two more oxygen atoms than water

• Hydrogen peroxide contains one more oxygen atom than water

• Hydrogen peroxide contain one less oxygen atom than water

• Hydrogen peroxide and water contain the same number of hydrogen atoms

Tags

NGSS.MS-PS1-1

A way to show the number and type of elements (atoms) in a molecule or compound with a combination of symbols and numbers.

• Physical change

• Chemical Change

• Chemical Formula

• Physical Formula

Tags

NGSS.MS-PS1-1

Why are the noble gases such as helium and neon grouped together in the periodic table?

• They are nonreactive gases

• They are highly reactive

• They are dangerous gases when combined with water

• They are liquid at room temperature and have high boiling points

Which of the following is a physical change

• Car rusting

• Frying an egg

• Baking a cake

• Mixing cookie dough

Which of the following represents a homogeneous mixture?

• Bar of Gold

• Trail Mix

• Bowl of Oatmeal

• Coffee

Which element has 12 protons?

• Hydrogen

• Sodium

• Magnesium

• Argon

Jared makes a solution by dissolving 10 grams of salt into 500 grams of water. What is the total mass of the solution?

1. 500 grams

2. Between 500 grams and 510 grams

3. 510 grams

4. More than 510 grams

• 500 grams

• Between 500 grams and 510 grams

• 510 grams

• More than 510 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5