IQWST

The "Law of Conservation of Matter"

• States that matter is created during a chemical reaction

• States that matter is destroyed during a chemical reaction

• States that atoms multiply during a chemical reaction

• None of the choices are correct

Tags

NGSS.MS-PS1-5

Why does this model NOT represent a chemical reaction?

• There is the same number of atoms in your reactant and product.

• There is a different number of atoms in your reactant and product.

• The bonds are not located in the correct place.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the following chemical reaction, what are the products involved.

• Copper & Acetic Acid

• Copper Acetate & Hydrogen Gas

• Copper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Look at the atoms in this model. What do you notice about the number of atoms on each side of the arrow?

• The number of hydrogen atoms are different on the right side of the arrow compared to the left side of the arrow.

• The number of oxygen atoms are different on the right side of the arrow compared to the left side of the arrow.

• The number of oxygen atoms and hydrogen atoms are the same on both sides of the arrows.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following observations were made with the "road salt & baking soda" experiment?

• Temperature change

• Production of a gas

• Production of a precipitate

• All of the above

Tags

NGSS.MS-PS1-2

Which properties were different between the magnesium ribbon & magnesium oxide after burning?

• color & solubility

• hardness & solubility

• solubility & density

• color & hardness

Tags

NGSS.MS-PS1-2

What is circled in the picture?

• Atom

• Molecule

• Chemical Bond

• Element

Tags

NGSS.MS-PS1-1

What does IQWST stand for in the context of science education?

• Investigating and Questioning our World through Science and Technology

• Innovative Questions in World Science and Technology

• Inquiry and Quality in World Science Teaching

• International Quest for World Science and Technology

Tags

NGSS.MS-LS1-1

NGSS.MS-PS1-3

Which of the following is a key component of the IQWST curriculum?

• Memorization of scientific facts

• Hands-on experiments and inquiry-based learning

• Standardized testing

• Lecture-based teaching

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-PS3-3

In an IQWST unit on ecosystems, students might explore which of the following questions?

• How do ecosystems maintain balance?

• What are the chemical properties of water?

• How do magnets work?

• What is the structure of an atom?

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4