7 parts of the Hubble space telescope

1. Magnetic Torquer
2. Central Baffle
3. Axial Science Instrument Module
4. Fix Head Star Tracker
5. Magnetometer
6. Optical Telescope Assembly Metering Truss
7. Rate Gyro Assembly

7 dragons

1. Smaug
2. Puff (the magic)
3. Tiamat
4. Fafnir
5. The Soup Dragon
6. Vermithrax Pejorative
7. Zu

7 worst movies of all time

As ranked by IMDB

1. Superbabies: Baby Geniuses 2 (2004)
2. Night Train to Mundo Fine (1966)
3. Daniel - Der Zauberer (2004)
4. Monster a-Go Go (1965)
5. The Skydivers (1963)
6. Pocket Ninjas (1997)
7. The Starfighters (1964)

7 lawn pests

1. Chafer grubs
2. Ants
3. Moles
4. Leatherjackets
5. Dandelions
6. Badgers
7. Allolobophora species of earthworms

7 most common allergy triggers

1. Pollen
2. Animal Hair
3. Dust Mites
4. Insect Bites
5. Mold
6. Food
7. Latex

7 Icelandic volcanoes that have erupted recently

1. Eyjafjallajökull - 2010
2. Grímsvötn - 2004
3. Hekla - 2000
4. Kolbeinsey ridge - 1999
5. Krafla - 1984
6. Eldfell - 1973
7. Reykjaneshryggur - 1970

7 Body Snatcher movies

1. Invasion of the Body Snatchers (1956 original)
2. Invasion of the Body Snatchers (1978 remake)
3. Strange Invaders (1983 parody)
4. Body Snatchers (1993 remake)
5. Invasion of the Body Squeezers (1998 parody)
6. The Invasion (2007 remake)
7. Invasion of the Pod People (2007 adaptation)