How do you say yellow?

Due to Jfer's family visit and my busines trip, I won't get to see Magda for a whole week. Before they headed out of town, we met for lunch at Zuzu's. When Jfer went to the bathroom, Magda asked "How do you say yellow?" As it often happens, it took me a while before I understood what she wanted, but then she proceded pointing at different things (table, salt, pepper, water, cup, straw, flower, chair, wall, fan, window, door, etc.) and for each asking how I say it and then repeating it after me. It amazes me the english vocabulary she has -- and most of it can be actually understood. And it thrills me that she wants to learn the Czech words, too.

BTW, for "yellow" I say žlutá...