Matter by SAMUEL SCHWARTZ https://padlet.com/samuelschwartz2021/j05lwunrw81s en-us 2016-10-20 19:05:13 UTC 2025-10-25 13:14:40 UTC hello@padlet.com MATTER samuelschwartz2021 https://padlet.com/samuelschwartz2021/j05lwunrw81s/wish/132201090 2016-10-20 19:06:23 UTC https://padlet.com/samuelschwartz2021/j05lwunrw81s/wish/132201090 Can be classified by its chemical properties samuelschwartz2021 https://padlet.com/samuelschwartz2021/j05lwunrw81s/wish/132201344 2016-10-20 19:07:03 UTC https://padlet.com/samuelschwartz2021/j05lwunrw81s/wish/132201344