Here is a list of science skills students learn in second grade! These skills are organized into categories, and you can move your mouse over any skill name to preview the skill. To start practicing, just click on any link. Smart Child Zone will track your score, and you will get immediate feedback as you practice!
1. Decimals
- Decimal numbers review
Skill Preview
- Compare and order decimals
Skill Preview
- Decimal number lines
Skill Preview
- Round decimals
Skill Preview
2. Number theory
- Prime or composite
Skill Preview
- Prime factorization
Skill Preview
- Multiplicative inverses
Skill Preview
- Divisibility rules
Skill Preview
- Greatest common factor
Skill Preview
- Least common multiple
Skill Preview
- GCF and LCM: word problems
Skill Preview
- Scientific notation
Skill Preview
- Compare numbers written in scientific notation
Skill Preview
- Classify numbers
Skill Preview
3. Integers
- Understanding integers
Skill Preview
- Integers on number lines
Skill Preview
- Absolute value and opposite integers
Skill Preview
- New! Quantities that combine to zero: word problems
Skill Preview
- Compare and order integers
Skill Preview
- Integer inequalities with absolute values
Skill Preview
4. Operations with integers
- Integer addition rules
Skill Preview
- Add integers using counters
Skill Preview
- Add integers
Skill Preview
- Integer subtraction rules
Skill Preview
- Subtract integers using counters
Skill Preview
- Subtract integers
Skill Preview
- Integer addition and subtraction rules
Skill Preview
- Add and subtract integers using counters
Skill Preview
- Add and subtract integers
Skill Preview
- Complete addition and subtraction equations with integers
Skill Preview
- Add and subtract integers: word problems
Skill Preview
- Integer multiplication rules
Skill Preview
- Multiply integers
Skill Preview
- Integer division rules
Skill Preview
- Divide integers
Skill Preview
- Integer multiplication and division rules
Skill Preview
- Multiply and divide integers
Skill Preview
- Complete multiplication and division equations with integers
Skill Preview
- Add, subtract, multiply, and divide integers
Skill Preview
- Evaluate numerical expressions involving integers
Skill Preview
5. Rational numbers
- Convert fractions or mixed numbers to decimals
Skill Preview
- Convert decimals to fractions or mixed numbers
Skill Preview
6. Operations with decimals
- Add and subtract decimals
Skill Preview
- Add and subtract decimals: word problems
Skill Preview
- Multiply decimals
Skill Preview
- Multiply decimals and whole numbers: word problems
Skill Preview
- Divide decimals
Skill Preview
- Divide decimals by whole numbers: word problems
Skill Preview
- Estimate sums, differences, and products of decimals
Skill Preview
- Add, subtract, multiply, and divide decimals: word problems
Skill Preview
- Multi-step inequalities with decima
Skill Preview
- Maps with decimal distances
Skill Preview
- Evaluate numerical expressions involving decimals
Skill Preview
7. Fractions and mixed numbers
- Understanding fractions: word problems
Skill Preview
- Equivalent fractions
Skill Preview
- Write fractions in lowest terms
Skill Preview
- Fractions: word problems with graphs and tables
Skill Preview
- Least common denominator
Skill Preview
- Compare and order fractions
Skill Preview
- Compare fractions: word problems
Skill Preview
- Convert between mixed numbers and improper fractions
Skill Preview
- Compare mixed numbers and improper fractions
Skill Preview
- Round mixed numbers
Skill Preview
8. Operations with fractions
- Add and subtract fractions
Skill Preview
- Add and subtract fractions: word problems
Skill Preview
- Add and subtract mixed numbers
Skill Preview
- Add and subtract mixed numbers: word problems
Skill Preview
- Inequalities with addition and subtraction of fractions and mixed numbers
Skill Preview
- Estimate sums and differences of mixed numbers
Skill Preview
- Multiply fractions and whole numbers
Skill Preview
- Multiply two fractions using models
Skill Preview
- Multiply fractions
Skill Preview
- Multiply mixed numbers
Skill Preview
- Multiply fractions and mixed numbers: word problems
Skill Preview
- Divide fractions
Skill Preview
- Divide mixed numbers
Skill Preview
- Divide fractions and mixed numbers: word problems
Skill Preview
- Estimate products and quotients of fractions and mixed numbers
Skill Preview
- Add, subtract, multiply, and divide fractions and mixed numbers: word problems
Skill Preview
- Maps with fractional distances
Skill Preview
- Evaluate numerical expressions involving fractions
Skill Preview
9. Exponents and square roots
- Understanding exponents
Skill Preview
- Evaluate exponents
Skill Preview
- Solve equations with variable exponents
Skill Preview
10. Linear functions
- Find the slope from a graph
Skill Preview
- Find the slope from two points
Skill Preview
- Find a missing coordinate using slope
Skill Preview
- Find the slope from an equation
Skill Preview
- Write a linear function
Skill Preview
- Identify linear and nonlinear functions
Skill Preview