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Science Quiz #1

There will be three stages of the quiz: 1. Chemistry 2. Biology 3. Physics. Choose the answer you think is correct under the question. Hope you enjoy and learn something new. Good luck!
Quiz by Toyo
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Last updated: August 6, 2020
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First submittedAugust 6, 2020
Times taken63
Average score83.3%
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1. What range of numbers in the pH scale are alkali?
2-7 ✓
0-6 ✓
8-14 ✓
6-12. ✓
Everything above the pH of 7 (neutral) is alkaline.
2. What are sedimentary rocks?
Rocks that are formed from lava when cooling down ✓
Rocks that were made from feces ✓
Rocks that have over time formed layers out of particles of sand ✓
Rocks that have changed from Igneous rocks. ✓
Sedimentary rocks form layers of sand overtime. Fossils can also be found inside them.
3. What element from the periodic table is number 45?
Lithium ✓
Rhodium ✓
Copper ✓
Chlorine. ✓
Rhodium is number 45 in the Periodic Table (Rh 45).
4. What colour is litmus paper in a weak acid?
Light blue ✓
Light green ✓
Dark purple ✓
Light red. ✓
The number 0 is the strongest acid (dark red), which means that number 14 is the strongest alkali (dark purple/blue).
5. Why are plants green?
They have a green pigment in their cell ✓
The first plant was painted green and then produced more plants like itself ✓
They have and green LED light inside them ✓
They are made up of green veins. ✓
Plants have a pigment in their cells that makes them green. It is known as chlorophyll.
6. What do plant cells have that animal cells don't?
Cell membrane, Cell wall ✓
Vacuole, Nucleus ✓
Cell wall, Chlorophyll ✓
Cytoplasm. ✓
Plant cells: cell wall, cell membrane, nucleus, vacuole. Animal cells: cell membrane, nucleus, vacuole.
7. What does the digestive system do?
Breaks down particles of food which are turned into a disposable material ✓
Controls our body through the brain ✓
Makes our body stay in place ✓
Chooses our food. ✓
The digestive system 'digests' the food and leaves some of it in our blood.
8. Name a bone in your body that starts with the letter 'U'.
Umbilical cord ✓
Ulna ✓
Unguligrade locomotion ✓
Uterus. ✓
Ulna starts with the letter 'U' and is located underneath the radius (lower arm bone).
9. Which planets are Gas Giants?
Mercury, Venus, Earth, Mars ✓
Jupiter, Saturn, Uranus, Neptune ✓
Saturn, Mars ✓
Earth, Saturn, Neptune, Uranus. ✓
A Gas Giant is a large planet of relatively low density consisting predominantly of hydrogen and helium.
10. Define what friction is.
A place in the Phillipines ✓
A force that attracts a body towards the centre of the earth ✓
A piece of iron that attracts small particles that are magnetic ✓
A force that acts in an opposite motion. ✓
Friction can act when you run and it will keep you from falling over.
11. What is the Earth made of?
Crust, Rocks, Water ✓
Fruits, Vegetables ✓
Crust, Mantle, Outer core, Inner core ✓
Earth, Mud. ✓
The crust, mantle, outer and inner core are layers of the Earth. The core is made of metals.
12. What are some sources of chemical energy?
Photosynthesis,Oxygen ✓
Wood, Bricks, Metal ✓
Water, Fire ✓
Fuel, Batteries, Food. ✓
Fuel, batteries, and food give/produce energy which we use every day.
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