NGSS.MS-PS1-2

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

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NGSS.MS-PS1-2

a substance that is formed as the result of a chemical reaction

• Product 
• Reactant
• Starters
• Enders

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NGSS.MS-PS1-2

3 Pb + 2 H₃PO₄ ----> 3 H₂ + 1 Pb₃(PO₄)₂

• Synthesis (or combination)
• Decomposition
• Single displacement
• Double displacement

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NGSS.MS-PS1-2

Is wood burning a physical or chemical change?

• Physical 
• Chemical

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NGSS.MS-PS1-2

Pancakes cooking on a griddle

• Chemical Change
• Physical Change

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NGSS.MS-PS1-2

Is a rusting bicycle a chemical or physical change?

• chemcial
• physical

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NGSS.MS-PS1-2

Which of the following 2 are chemical reactions?

• sugar dissolving in water

• water turning into steam

• burning wood

• mixing baking soda and vinegar

• tearing paper

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NGSS.MS-PS1-2

Which of the following is a common sign that a chemical change has occurred?

• A chemical has turned a different color, bubbled, and/or changed temperature.

• A chemical has changed to a different state of matter, such as a liquid to a solid.

• A chemical has changed size.

• A chemical has become a different shape.

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NGSS.MS-PS1-2

Which of the following options provides evidence of a CHEMICAL change?

• Wood is burned releasing ash and smoke

• Rocks separate when soil is sifted

• Boiling water bubbles when heated

• Salt dissolves in water

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NGSS.MS-PS1-2

Is this an example of a physical or chemical change?

• physical

• chemical

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NGSS.MS-PS1-2