MVPA 3 Review

Front

What is competition in ecology?

Back

Competition occurs when two or more organisms vie for the same resources, such as food, space, or light, which are limited in supply.

Front

Give an example of competition.

Back

Two plants growing in the same area and competing for sunlight.

Front

What does it mean for a chemical reaction to be balanced?

Back

A chemical reaction is balanced when the number of atoms of each element is the same on both sides of the equation.

Front

Why is it important to balance chemical equations?

Back

Balancing chemical equations ensures the law of conservation of mass is upheld, meaning matter is neither created nor destroyed.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances where each retains its own properties.

Front

How can mixtures be separated?

Back

Mixtures can be separated by physical methods such as filtration, evaporation, or distillation.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is one in which the components are not uniformly distributed, and different parts can be seen.

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is one in which the components are evenly distributed and cannot be distinguished from one another.

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together.

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.