1Wash the grapes, strawberries, and watermelon thoroughly under running water.
Cut the grapes in half and remove any seeds if necessary.
Remove the stems from the strawberries and slice them into halves or quarters, depending on their size.
Cut the watermelon into bite-sized cubes, removing the rind and seeds.
Peel the banana and slice it into thin rounds.
Peel the orange, separate the segments, and cut each segment into bite-sized pieces.
In a large mixing bowl, combine the grapes, strawberries, watermelon, banana, and orange pieces.
In a small bowl, mix the lemon juice and sugar until the sugar is dissolved.
Pour the lemon juice and sugar mixture over the fruit and gently toss to combine.
Chill the fruit salad in the refrigerator for at least 15 minutes before serving for best flavor.
Serve cold and enjoy your refreshing fruit salad!