Science EOG

Is melting butter for popcorn a chemical or physical change?

• chemical

• physical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Is bleaching your hair a physical or chemical change?

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A substance with a mass of 10 g is heated to produce two new substances. The mass of the first new substance is 9.3 g and the mass of the second new substance is 0.7 g. Which of the following is best demonstrated by this example?

• heat transfer

• physical change

• law of conservation of mass

• law of conservation of energy

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Why is it harder for the boy in Image B to get down the hill?

• Motion

• Friction

• Work

• Displacement

If these boys are pulling with the same amount of force.  What will happen?

• The boy in blue will win.

• They will not move at all.

• The boy in red will win.

• Both will fall down.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

When alleles are different (ex: Yy)

• heterozygous

• dominant

• homozygous

When alleles are the same (ex: YY or yy)

• heterozygous

• recessive

• homozygous

the physical look of a trait (what do you see?)

• phenotype

• genotype

• allele

the genetic code for the gene (YY, Yy, yy)

• phenotype

• genotype

• allele

Tags

NGSS.HS-LS3-3

In the current model of the Periodic Table of Elements, the elements have been placed in groups or families. Why have the elements been organized in such a way?

• Elements in each group have similar densities.

• Elements in each group all have similar boiling points.

• Elements in each group have similar physical and chemical properties.

• Elements in each group have the ability to chemically react with the other elements within that group.