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Glossary: Terms Starting with Y

5 definitions with links to the lessons that teach each word.

y-axis

Maths

Vertical axis.

Learn it in: Coordinate grids (Grade 5), Coordinate plane (Grade 6)

year

Maths

Twelve months.

Learn it in: Months of the year (Grade 1), Calendars (Grade 2)

yesterday

Maths

The day before today.

Learn it in: Days of the week (Grade 1)

yolk

Science

the food store inside an egg

Learn it in: Chicken life cycle (Grade 2)

young

Science

baby animals or new plants

Learn it in: Characteristics of living things (Grade 1), Animals as living organisms (Grade 1), What are animals (Grade 1)