yes she is ras daughter
Nut is the daughter of Shu and Tefnut.
Ra's first daughter was Hathor. Other offspring were Shu and Tefnut.
how did tefnut die
If the mother of Bastet was Isis, her brother was Horus; if a daughter of Ra her siblings include Shu and Tefnut.
Yes; Bastet was the daughter of Atum, she was sister to Shu and Tefnut and often the consort of Ptah.
Tefnut is the Egyptian goddess of rain dew and moisture
Tefnut is moisture, warm air.
"...;tributes and myths, were not seen as contradictory but complementary.[5] In a complicated relationship Hathor is at times the mother, daughter and wife of Ra..." http://en.wikipedia.org/wiki/Hathor
Nut is the goddess of sky and firmament; daughter of Tefnut and Shu, sister and consort of Geb, the mother of Horus the Elder, Osiris, Set, Isis and Nephthys.
She is the goddess of moisture.
Bastet was identified with Hathor, Mut, Sekhmet, Tefnut; she was the daughter of Atum/Ra and soemtimes Isis; her consort was Ptah, she was also said to be mother of Anubis, or Mahes and Nefertem.
Tefnut is a goddess, the mother of Nut and Geb, sister and consort of Shu; she was goddess of moisture and warm air.