I left this one until near the end, after completing the main quests and upgrading the play area, once you do that you can go and speak to Jill in the upgraded playground area and she'll give you the option to text her and she'll send you a marker on where the nearest scraps are that you haven't collected yet. Keep going to the marker, collect the scraps and text again for next marker - eventually she will text you that you've got them all and achievement pops.
This guide will help walk you through all of the achievements in around 3-4 hours, timestamps are below the video
ACHIEVEMENTS TIMESTAMPS
12:50 – 1st Bracelet (Part 1 of Infinite Power Achievement)
25:21 – Change of Plan Achievement
33:21 – Enrichment Through Invention Achievement (Jill’s Quest)
49:50 – 2nd Bracelet (Part 2 of Infinite Power Achievement)
58:37 – 3rd Bracelet (Part 3 of Infinite Power Achievement)
1:00:35 – Growing With Water Achievement (Martin’s Quest)
1:28:00 – 4th Bracelet (Part 4 of Infinite Power Achievement)
1:30:11 – Lunch by Compromise Achievement (Avery’s Quest)
2:04:00 – Lesson Learned Achievement
2:16:18 – Name Reveal Achievement
2:17:45 – ACTUAL Name Reveal Achievement
2:18:19 – THIS is the Real Name Achievement
2:19:04 – BELIEVE ME, THIS IS THE REAL NAME Achievement
2:19:43 – EMBRACE THE UNKNOWN Achievement
2:20:10 – Interrupt This Broadcast Achievement
2:20:30 – Ascend Achievement
2:21:46 – Oof! Achievement
2:22:22 – Start of Hero of the People Achievement
2:23:34 – Under New Management Achievement
2:26:37 – Spider-Gator Achievement
2:27:30 – Hero of the People Achievement (continued)
2:30:00 – Craftslayer Achievement
2:32:47 – Demon of DIY Achievement
2:33:40 – Gatorangelo Achievement
2:34:06 – Lizard in Space Achievement
2:34:35 – Hidden Scale Clan Achievement