Plant cells have a cell wall, something that the animal cells don't have. They help secure the plant cell to protect it. They also have something called a chloroplast. The chloroplast has a green colored pigment, which is the reason why plants have that green color. The chloroplast captures energy from the sun and turns into food to feed the plant, and this process is called photosynthesis.
Animal cells are a bit different however. Animal cells don't have a chloroplast and a cell wall. They have to consume their own food and break it down to release it. The cell part that does that is called the mitochondrion. It's the powerhouse of the cell.
Both of these cells have things in common too. They're both eukaryotic because they have nuclei in them. The nucleus tells each cell what to do and is the "brain" of the cell. In ways, they both have their differences and similarities. Sort of like people. However, in reality, they're just cells doing their job.