# data[].attributes.headline
Some forms of energy are harmful to the environment

# data[].attributes.subject
Some forms of energy are harmful to the environment

# data[].attributes.headline
I wonder what formulas are used to find energy

# data[].attributes.subject
I wonder what formulas are used to find energy

# data[].attributes.headline
I wonder how many other kinds of energy there is

# data[].attributes.subject
I wonder how many other kinds of energy there is

# data[].attributes.headline
I wonder why some energy forms are dangerous

# data[].attributes.subject
I wonder why some energy forms are dangerous

# data[].attributes.headline
potential energy is energy that is stored up in an object that could produce that energy

# data[].attributes.subject
potential energy is energy that is stored up in an object that could produce that energy