Answer:
1. Maror
This is the bitter herb, which reminds the Jews of the bitterness of the slavery their forefathers endured in Egypt. It’s usually represented on Seder plates with horseradish. You can use part of a full root or spoon out some of the jarred stuff.
2. Z’roa
Usually a roasted lamb shank bone, the z’roa is just for show to represent the lamb that was sacrificed the night the Jews left Egypt. (Some communities use a roasted chicken neck instead.) The word z’roa means arm, and people often say this item also symbolizes the outstretched arm of G-d.
3. Charoset
The charoset is meant to resemble the mortar and brick made by the Jews when they were slaves in Egypt under Pharaoh. Some communities of Ashkenazi Jews make it with apples, walnuts, and wine. Sephardic Jews often use figs and dates, which are more common than apples.
4. Chazeret
A second bitter item, which is sometimes left off the Seder plate entirely, romaine lettuce symbolizes the fact that the Jewish stay in Egypt began soft and ended hard and bitter (look at the two ends of a piece of lettuce).
5. Karpas
Typically represented with parsley (although some families use boiled potatoes), the karpas is a symbol of spring and new beginnings. It can also symbolize the initial flourishing of the Israelites during the first years in Egypt.
6. Beitzah
There are many different explanations for why a roasted hard-boiled egg sits on the Seder plate. Some families say it represents the pre-holiday offering. It’s also said the roundness of the egg represents the cycle of life. And other people say it represents new beginnings and hope.