Sometimes, the dark spots on the marshmallow can fall off of the marshmallow. This means that, the system does not need to include the pieces that fell when determining the mass before and after.
Answer:
13
Explanation:
The atomic number for Aluminum (Al) is 13. If you have access to the periodic table, this would've taken a few seconds.
Answer:
the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.
Answer:
As the sweat evaporates off your skin, you cool down. Sweat is a great cooling system.
Explanation:
Sensory peripheral nervous system and the motor peripheral nervous system